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The New ISO/IEC 17025:2017: The Updated Standard

By Ravi Kanipayor, Christian Bax, Dr. George Anastasopoulos
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As state cannabis regulatory frameworks across the country continue to evolve, accreditation is becoming increasingly important. Because it provides consistent, turnkey standards and third-party verification, accreditation is quickly emerging as an important tool for regulators. For cannabis testing laboratories, this trend has been especially pronounced with the increasing number of states that require accreditation to ISO/IEC 17025.

As of 2017 there were nearly 68,000 laboratories accredited to ISO/IEC 17025, making it the single most important benchmark for testing laboratories around the world. ISO/IEC 17025:2005 specifies the general requirements for the competence to carry out tests including sampling. It covers testing performed using standard methods, non-standard methods and laboratory-developed methods. It is applicable to all organizations performing tests including cannabis labs. The standard is applicable to all labs regardless of the number of personnel or the extent of the scope of testing activities.  Developed to promote confidence in the operation of laboratories, the standard is now being used as a key prerequisite to operate as a cannabis lab in many states.

There are currently 26 states in the United States (also Canada) that require medical or adult-use cannabis to be tested as of February 2019. Of those states, 18 require cannabis testing laboratories to be accredited – with the vast majority requiring ISO/IEC 17025 accreditation. States that require testing laboratories to attain ISO/IEC 17025 accreditation represent some of the largest and most sophisticated cannabis regulatory structures in the country, including California, Colorado, Maryland, Massachusetts, Michigan, Nevada and Ohio. As a consequence, many cannabis testing laboratories are taking note of recent changes to ISO/IEC 17025 standards.

ISO/IEC 17025 was first issued in 1999 by the International Organization for Standardization. The standard was updated in 2005, and again in 2017. The most recent update keeps many of the legacy standards from 2005, but adds several components – specifically requirements for impartiality, risk assessment and assessing measurement uncertainty. The remainder of this article takes a deeper dive into these three areas of ISO/IEC 17025, and what that means for cannabis testing laboratories.Objectivity is the absence or resolution of conflicts of interest to prevent adverse influence on laboratory activities.

Impartiality

ISO/IEC 17025:2005 touched on an impartiality requirement, but only briefly. The previous standard required laboratories that belonged to organizations performing activities other than testing and/or calibration to identify potential conflicts of interest for personnel involved with testing or calibration. It further required that laboratories had policies and procedures to avoid impartiality, though that requirement was quite vague.

ISO/IEC17025:2017 emphasizes the importance of impartiality and establishes strict requirements. Under the new standard, labs are responsible for conducting laboratory activities impartially and must structure and manage all laboratory activities to prevent commercial, financial or other operational pressures from undermining impartiality. The definitions section of the standard defines impartiality as the “presence of objectivity.” Objectivity is the absence or resolution of conflicts of interest to prevent adverse influence on laboratory activities. For further elaboration, the standard provides similar terms that also convey the meaning of impartiality: lack of prejudice, neutrality, balance, fairness, open-mindedness, even-handedness, detachment, freedom from conflicts of interest and freedom from bias.

To comply with the new standard, all personnel that could influence laboratory activities must act impartially. ISO/IEC 17025:2017 also requires that laboratory management demonstrate a commitment to impartiality. However, the standard is silent on how labs must demonstrate such commitment. As a starting point, some cannabis laboratories have incorporated statements emphasizing impartiality into their employee handbooks and requiring management and employee training on identifying and avoiding conflicts of interest.

Risk Assessment

Both the 2005 and 2017 versions contain management system requirements. A major update to this is the requirement in ISO/IEC 17025:2017 that laboratory management systems incorporate actions to address risks and opportunities. The new risk-based thinking in the 2017 version reduces prescriptive requirements and incorporates performance-based requirements.

Under ISO/IEC 17025:2017, laboratories must consider risks and opportunities associated with conducting laboratory activities. This analysis includes measures that ensure that:

  • The lab’s management system is successful;
  • The lab has policies to increase opportunities to achieve its goals and purpose;
  • The lab has taken steps to prevent or reduce undesired consequences and potential failures; and
  • The lab is achieving overall improvement.

Labs must be able to demonstrate how they prevent or mitigate any risks to impartiality that they identify.To comply with ISO/IEC 17025:2017, labs must plan and implement actions to address identified risks and opportunities into management systems. They must also measure the effectiveness of such actions. Importantly, the standard requires that the extent of risk assessments must be proportional to the impact a given risk may have on the validity of the laboratory’s test results.

ISO/IEC 17025:2017 does not require that labs document a formal risk management process, though labs have discretion to develop more extensive methods and processes if desired. To meet the requirements of the standard, actions to address risks can include sharing the risk, retaining the risk by informed decision, eliminating the risk source, pinpointing and avoiding threats, taking risks in order to pursue an opportunity, and changing the likelihood or consequence of the risk.

ISO/IEC 17025:2017 references “risks” generally throughout most of the standard. However, it specifically addresses risks to a laboratory’s impartiality in section 4.1. Note, the new standard requires that labs must not only conduct activities impartially, but also actively identify risks to their impartiality. This requirement is on-going, not annually or bi-annually. Risks to impartiality include risks arising from laboratory activities, from laboratory relationships, or from relationships of laboratory personnel. Relationships based on ownership, governance, shared resources, contracts, finances, marketing, management, personnel and payment of a sales commission or other inducements to perform under pressure can threaten a laboratory’s impartiality. Labs must be able to demonstrate how they prevent or mitigate any risks to impartiality that they identify.

Assessing Measurement Uncertainty With Decision Rules

ISO/IEC 17025:2005 required (only where necessary and relevant) test result reports to include a statement of compliance/non-compliance with specifications and to identify which clauses of the specification were met or not met. Such statements were required to take into account measurement uncertainty and if measurement results and uncertainties were omitted from the statement, the lab was required to record and maintain the results for future reference.

ISO/IEC 17025:2017 requires similar statements of conformity with an added “decision rule” element. When statements of conformity to a specification or standard are provided, labs must record the decision rule it uses and consider the level of risk the decision rule will have on recording false positive or negative test results. Like the 2005 version, labs must include statements of conformity in test result reports (only if necessary and relevant- see 5.10.3.1 (b)). Now, test result reports on statements of conformity must include the decision rule that was employed. 

Moving Forward

Because many states require ISO/IEC 17025 accreditation for licensing, cannabis testing labs across the country would be well advised to closely monitor the implications of changes in ISO/IEC 17025:2017 related to impartiality, risk assessment and measurement uncertainty. If you run a cannabis testing lab, the best way to ensure compliance is education, and the best place to learn more about the new requirements is from a globally recognized accreditation body, especially if it is a signatory to the International Laboratory Accreditation Cooperation (ILAC) for testing laboratories, calibration laboratories and inspection agencies.

References

Facts & Figures

ISO/IEC 17025:2005: General requirements for the competence of testing and calibration laboratories

ISO/IEC 17025:2017: General requirements for the competence of testing and calibration laboratories 

PerkinElmer Awarded Five Emerald Test Badges

By Aaron G. Biros
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According to a press release published today, Emerald Scientific awarded PerkinElmer five badges for The Emerald Test, a bi-annual Inter-Laboratory Comparison and Proficiency Test (ILC/PT) program. Awarding the badges for Perkin Elmer’s instruments and testing methods affirms their ability to accurately detect pesticides, heavy metals, residual solvents, terpenes and potency in cannabis.

According to Greg Sears, vice president and general manager of Food, Chromatography & Mass Spectrometry, Discovery & Analytical Solutions at PerkinElmer, they are the only instrument manufacturer to receive all five accolades. “To date, PerkinElmer is the only solutions provider to successfully complete these five Emerald Scientific proficiency tests,” says Sears. “The badges underscore our instruments’ ability to help cannabis labs meet the highest standards available in the industry and effectively address their biggest pain point: Navigating diverse regulations without compromising turnaround time.”

The instruments used were PerkinElmer’s QSight 220 and 420 Triple Quad systems, which are originally designed for accurate and fast detection/identification of “pesticides, mycotoxins and emerging contaminants in complex food, cannabis and environmental samples,” reads the press release. They also used their ICP-MS, GC/MS and HPLC systems for the badges.

PerkinElmer says they developed a single LC/MS/MS method using their QSight Triple Quad systems, which helps labs test for pesticides and mycotoxins under strict regulations in states like California and Oregon. They performed studies that also confirm their instruments can help meet Canada’s testing requirements, which set action limits nearly 10 times lower than California, according to the press release.

Mission Mountain Laboratories: The First Accredited Cannabis Testing Lab in Montana

By Aaron G. Biros
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Last week, Mission Mountain Laboratories (MML), based in Arlee, Montana, received their ISO/IEC 17025:2005 accreditation from Perry Johnson Laboratory Accreditation (PJLA). This marks the first cannabis testing lab in Montana to get ISO 17025-accredited.

According to a PJLA client spotlight, MML is a female-owned business with two generations of family-run business experience. Before they took the plunge into medical cannabis testing, MML started out testing in public water systems in Montana. They have since expanded their regimen of testing services to offer a host of other services, but most recently adding compliance testing for medical cannabis and cannabis related products.

The Mission Mountain Labs team

According to Kimberly Nuccio, president of MML, this accreditation allows them to grow their business considerably. “Accreditation has opened greater opportunities for business growth by attracting larger companies that are looking for reassurance that a laboratory follows the highest testing standards,” says Nuccio. “Being an accredited lab gives them that added confidence necessary when deciding which lab to partner with for their testing needs. Mission Mountain Laboratories is the first Medical Marijuana Lab to achieve ISO accreditation in the state of Montana, and PJLA accreditation helped expand us into the new arena of Medical Marijuana compliance testing.”

MML has plans to expand their operations greatly, including opening a location in Florida by 2020. “We are aware of the increased and urgent demand for quality Cannabis compliance testing nationwide and are currently working on a 3-year plan to expand into Florida and several other states to fill this void,” says Nuccio. “These new locations will also be equipped to provide full service testing for Nutraceuticals, Food manufacturing, and Environmental businesses.”

Liberty Health Sciences Receives Second GMP Certification

By Aaron G. Biros
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According to a press release sent out last week, Liberty Health Sciences announced that the British Standards Institution (BSI) awarded the Good Manufacturing Practices (GMP) certification for a facility located in Gainesville, Florida. The certification covers their 10,000 square foot medical cannabis manufacturing facility, where much of their extraction and processing takes place. Liberty also operates a large cultivation space at the same campus.

“it demonstrates our commitment to producing the highest quality and safest products possible for our customers throughout the state of Florida”According to Jessica Engle, director of regulatory compliance for Liberty, they actually did much more than just a GMP certification, including designing a HACCP plan. “In addition to GMP compliance, Liberty has gone above and beyond the DOH requirements to create a fully operational HACCP (Hazard Analysis Critical Control Point) plan that helps ensure the products we produce are safe for consumers,” says Engle. “The basis for HACCP is a scientific approach to preventative risk analysis. Every time a process changes, equipment changes, or raw material changes, our HACCP team meets to identify potential physical, chemical, and microbiological risks. Preventative measures are then put into place to help reduce the likelihood of the contamination hazard from ever occurring.”

Florida’s regulations on medical cannabis producers and processors actually require a form of certification demonstrating proper food safety protocols. “Within 12 months after licensure, a medical marijuana treatment center must demonstrate to the department that all of its processing facilities have passed a Food Safety Good Manufacturing Practices, such as Global Food Safety Initiative or equivalent, inspection by a nationally accredited certifying body,” reads Rule 9 in the 2017 Florida Statute. Edibles producers in Florida “must hold a permit to operate as a food establishment pursuant to chapter 500, the Florida Food Safety Act, and must comply with all the requirements for food establishments pursuant to chapter 500 and any rules adopted thereunder.” The rules also lay out requirements for packaging, dosage and sanitation rules for storage, display and dispensing of edible products.

Also according to the press release, the company is expecting to grow immensely, saying they will add an additional 160,000 square feet of cultivation space at their Gainesville campus. George Scorsis, CEO of Liberty Health Sciences, says this GMP certification is an important landmark for them. “Receiving GMP certification at an additional facility is a major milestone for Liberty Health Sciences and it demonstrates our commitment to producing the highest quality and safest products possible for our customers throughout the state of Florida,” says Scorsis. “This achievement reflects the incredibly high standards we expect of ourselves and that our clients expect as a patient provider. We will continue to produce the highest quality products and exceed production standards that surpass even the most stringent regulatory requirements.”

Liberty has dispensaries, manufacturing facilities and cannabis education centers all over Florida. They have plans to launch a large number of locations in 2019, including ones in Boca Raton, Ft. Myers, Miami, Orlando and more.

Beleave Achieves ISO 9001 Certification

By Aaron G. Biros
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According to a press release, Beleave Inc. announced recently that their subsidiary, Beleave Kannabis Corporation, received the ISO 9001:2015 certification. The facility that received the certification, based in Hamilton, Ontario, was certified “for the research, development, and production of cannabis products for medicinal and recreational purposes,” reads the press release.

Beleave is a vertically-integrated cannabis business headquartered in Oakville, Ontario that cultivates cannabis as well as producing oils and extracts. The company operates in both medical and recreational sectors of the market. They have been working on developing cannabis food and beverage products, such as infused powders and sugars, expecting that the recreational cannabis market in Canada will soon open its doors to infused products in 2019.

ISO 9001:2015 is an international standard that stipulates requirements for a quality management system (QMS), showing that a facility can provide products that meet customer and regulatory requirements. ISO 9001:2015 is the most up-to-date version for the standard, which can help show a company’s commitment to quality, efficiency and consistency. The 2015 version uses criteria with an emphasis on risk-based thinking to aid in the application of the process approach, improved applicability for services and increased leadership requirements.

“We continue to develop international partnerships and plan to enter global markets”The company’s facility was certified by Bureau Veritas Certification Holding SAS in late January of 2019. According to Roger Ferreira, chief science officer at Beleave, the process of certification was no easy undertaking. “After many months of hard work and preparation, we are extremely proud to be one of the few licensed producers of cannabis to have received ISO 9001:2015 accreditation,” says Ferreira. “This certification reflects Beleave’s ongoing commitment to quality across key elements of our business, which includes research, innovation, and production of cannabis products.”

Going beyond Canada, Ferreira says they are building the foundation of a company preparing to expand internationally. “Further, this internationally recognized certification for our quality management system positions us well as we continue to develop international partnerships and plan to enter global markets,” says Ferreira. Through their ownership in Procannmed S.A.S., they are licensed to cultivate and produce medical cannabis products out of Colombia, with the goal to export products to the Latin American market. They have also partnered with Canymed GmbH, based in Germany, to further explore opportunities in the European medical cannabis market.

8 Mistakes Businesses Make When Managing Product Labels: Part 1

By Rob Freeman
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Editor’s Note: This article contains the first four common labeling mistakes that businesses can make. Click here to view the next four common labeling mistakes. 

Whether you’re a small business owner or a production manager of a large manufacturer, if you’ve ever experienced problems with your product labels you know it can quickly turn into a serious issue until that problem is resolved. From the time it’s applied to your product all the way to the POS (Point of Sale), labels always seem to be the least significant part of the production process- until something goes wrong. And when it does go wrong, it can create major branding issues and cost your company tens of thousands of dollars due to hefty supply chain late penalties and/or even government fines.

This article aims to provide insight as to how a company like Label Solutions Inc. helps businesses and manufacturers create new labels for their products as well as what to look for should you experience label failure at your retail locations. Topics discussed in this article do not cover all possible issues, but these common mistakes will hopefully help you better understand how creating a product label works, and how to possibly prevent your own problems in the future.

Mistake #1: Not Understanding the Importance Between the “Construction” Versus the “Artwork & Compliance” of the Label

This may seem like common sense, but it is often overlooked. Especially when dealing with fast-track projects.

Construction of the Label is the material selected and production process to produce the label. When creating a new label from the ground up, it is important to factor in how your product will be produced, necessary shipping and supply chain needs, how it is stored in inventory and how it will be presented at the POS. Understanding what environments your product will be exposed to throughout its life cycle will give you an advantage when approving substrate material, inks, and the strength of adhesive that might be necessary for your application.

The Artwork & Compliance of the Label refers to the overall design of the label, artwork, customer messaging, bar codes and regulatory requirements you need to follow in order to avoid serious government fines that might relate to your industry (Referring to agencies such as OSHA, DOT, and the FDA).In most cases the construction of the label does not apply to the compliance of the label.

Most label providers do not have the in-house expertise to offer compliance assistance. Although it is still the manufacturer who is liable for all final artwork approvals on their product, label providers that do offer advisory services can help update label content when regulatory changes are enacted. This “safety net” can save your company from extra production costs and, potentially, excessive legal time and material costs. In short, you should always review final label artwork approvals with your compliance team and/or legal expert, but it never hurts to have a “safety net” to help eliminate unnecessary orders or production delays.

In most cases the construction of the label does not apply to the compliance of the label. An exception to this statement would be industries such as the electronics industry that use UL (Underwriter Laboratories) labels that must meet UL specifications and be produced under recognized UL files. In other words, the compliance of a UL label is the construction of the label.

Best Method Approach: An excellent example of companies that understand the difference between the Construction vs. Artwork & Compliance of the label would be the compressed gas industry. Gas suppliers and distributors require long term regulatory compliant labels on their cylinders and micro-bulk tanks. These gas tanks are used in a wide variety of industries such as for manufacturing, welding, medical procedures, and specialty gas mixes for the micro-electronics industry.

The compressed gas industry requires that their labels follow strict, up-to-date OHSA and DOT compliance requirements. As for the construction of the label, it is common practice that the label remains legible on the cylinder for an average of five years. The 5-year duration is due to the millions of tanks that are in circulation throughout the US and Canada. What’s more, each label is produced to adhere to the cylinder’s metal surface during extreme outdoor weather conditions such as fluctuating temperatures, freezing rain, high winds, and direct sunlight year-round.

Mistake #2: Applying Labels Incorrectly to Your Products

Whether the label is applied to the product surface by hand or automatically with a label applicator, the label itself may not be applied level or evenly. Besides this being a major branding issue, this could also affect how the bar codes are scanned and could eventually impact your delivery times while trying to correct a batch.

Best Method Approach: There are construction alternatives that you can choose from to potentially reduce the impact of incorrect label application. For example, products with certain label adhesives allow your production team to reposition the label within a few minutes before the tack completely sets to the surface. The type of surface (cardboard, metal, plastic, glass, etc.) and the type of adhesive will determine how much time your production team will have before the tack sets.

The best practice is to apply labels prior to filling the bottles and cans as opposed to filling first and then applying the label in your production line.A good example of this best practice can be seen in the beverage market. Whether the client produces a uniquely crafted beer, or a rare ingredient infused into a new health drink, labels that are auto-applied to bottles and cans will sometimes experience equipment tension issues that need to be recalibrated. Once labels are applied off-alignment, a delayed tack setting can allow the label to be quickly repositioned by hand when needed. The best practice is to apply labels prior to filling the bottles and cans as opposed to filling first and then applying the label in your production line. The reason, excess spillage from filling can interfere with most adhesives.

This same repositionable adhesive is excellent to keep in mind for large equipment production assembly lines that apply prime (branding) labels and warning labels by hand. Even with large wide-format labels, the adhesive tack can be formulated so your employees have a few minutes to adjust, straighten, and smooth away trapped air bubbles once it has been placed on the surface. Knowing you have this option can help reduce label inventory waste, additional production material wastes and avoid delaying production time. More importantly, this option keeps your brand and your warning/instructional labels looking fresh.

Mistake #3: Not Sharing Your Production Run Schedules with Your Label ProviderSupply chain management (SCM) models are excellent examples of the best approach.

Some of Label Solutions’ largest accounts have the most efficient real-time tracking supply chain models in North America, but even they cannot avoid sudden increased orders for their products stemming from high customer demand or similar issues. It is a good problem to have, but it is a problem, nonetheless. Manufacturers utilize supply chain management tools to notify their suppliers of their monthly order forecasts, which in turn helps suppliers manage their materials and deliveries more efficiently.

On the other side of the spectrum, when small businesses share their production schedules with a supplier it means that both parties (the manufacturer and label provider) understand when to expect higher or lower order quantities each month. Label providers should back date their label production schedules, so they have the materials available to handle your busier months while ensuring on-time deliveries.

Best Method Approach: Supply chain management (SCM) models are excellent examples of the best approach. Although SCM’s are designed for scalability and real-time tracking, the benefit to you also helps your label supplier. For example, our large retail and industrial manufacturing clients notify the Label Solutions team to produce their labels according to their Supply Chain portal demand schedules. This, in turn, allows label suppliers to allocate production time and materials more efficiently for your last-minute rush orders.

Smaller companies can take a much more simplified approach (without the SCM tracking) to help their suppliers manage their orders – even if they do not use supply chain management. A simple Excel report of production runs over a 12-month time frame is ideal. If your label provider does not already practice this or similar methodology, it might be time to start looking for a more proactive label provider. If you’re unsure you want to share your information, then you might consider requiring your label provider to sign an NDA (Non-disclosure Agreement).

Mistake #4: Not Accepting Alternative Sizes of the Label to Allow for Better Pricing

If your product needs a label with, for example, a dimension of 5.25 X 6.75 inches, there might be a much better price point offered to you if you’re open to switching to a slightly different dimension label of, say, 5 X 7 inches.  Obviously, you need to make sure the new dimension would fit your product(s) and work with your production line. But, if alternate dimensions are within the scope of the project, a modified SKU could potentially cut down on cost and production time.

Best Method Approach: You might not have the time or ability to change your label if you already market that product in retail stores. But, if you are changing your branding, creating a new style of label, or releasing a completely new product, this is the ideal time to consider implementing better continuity between your products. This could include elements such as matching colors and label/packaging design.

In addition to updating your SKU’s, this might also be an opportunity for your company to consolidate multiple products onto a universal label size. By applying the same sized labels to multiple SKU’s, you can increase efficiency regarding repeated label orders, especially for label printers that use digital printers. Combine this approach with your expected annual quantity estimates and you’ll be positioned for very efficient ordering options as your company grows.

Editor’s Note: We’ll cover the next four most common labeling mistakes in Part Two coming next week. Stay tuned for more!

Pesticide Testing: Methods, Strategies & Sampling

By Charles Deibel
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Editor’s Note: The following is based on research and studies performed in their Santa Cruz Lab, with contributions from Mikhail Gadomski, Lab Manager, Ryan Maus, Technical Services Analyst, Dr. Laurie Post, Director of Food Safety & Compliance, Andy Sechler, Lab Director, Toby Astill, Senior Business Development Leader at Perkin Elmer and Charles Deibel, President of Deibel Cannabis Labs.

Pesticides represent the leading cause of batch failures in the cannabis industry. They are also the hardest tests to run in the laboratory, even one equipped with state-of-the-art equipment. The best instruments on the market are HPLC and GC dual mass spectrometer detectors, called “HPLC-qqq”, “GC-qqq,” or just triple quads.

As non-lab people, we envision a laboratory that can take a cannabis sample, inject it into a triple quad and have the machine quickly and effortlessly print out a report of pesticide values. Unfortunately, this is far from reality. The process is much more hands on and complex.In the current chemistry lab, trained analysts have to first program the triple quads to look for the pesticides of concern; in cannabis pesticide testing, this is done by programming the first of two mass spectrometers to identify a single (precursor) mass that is characteristic of the pesticide in question. For BCC requirements in California, this has to be done for all 66 pesticides, one at a time.

Next, these precursor ions are degraded into secondary chemicals called the “product” ions, also called transition ions. The second of the two mass spectrometers is used to analyze these transition ions. This process is graphed and the resulting spectrum is analyzed by trained chemists in the lab, pesticide by pesticide, for all the samples processed that day. If the lab analyzes 10 samples, that translates to 660 spectra to analyze (66 pesticides x 10 samples). When looking at the spectra for each pesticide, the analysts must compare the ratios of the precursor ions to the product ions.

Confirmation Testing

If these spectra indicate a given pesticide may be present, the chemists must then compare the ratios between the precursor and the products. If these ratios are not what is expected, then the analyst must perform confirmation testing to prove the precursor mass either is or is not the pesticide of concern. If the ratios are not what is expected, it means the molecule is similar to the pesticide in question, but may not be that pesticide. This confirmatory testing is key to producing accurate results and not failing batches when dealing with closely related chemicals. This process of analyzing spectra is done in all labs that are performing pesticide testing. In this fledgling industry, there are few published cannabis pesticide methods. 

The need for this type of confirmation testing doesn’t happen all of the time, but when it does, it will take longer than our targeted three-day turn-around time. In the picture above, one precursor mass is ionized into several product masses; but only two are large enough to be used for comparison. In this hypothetical situation, two product masses are produced for every one precursor, the expected ion abundance ratio should be less than 30%. When performing any confirmatory testing, if the ion abundance ratio is >30%, it means the original precursor molecule was not the pesticide of concern. For example, if the ion abundance ratio was 50%, then the original molecule broke down into too many parts; it was not the pesticide we were looking for. This ion abundance ratio threshold was established by FANCO, the international organization that sets guidelines for all pesticide testing.

Testing Strategies

Methodology: In this fledgling industry, there are few published cannabis pesticide methods. The identification of the precursor mass and product ions are not always published, leaving labs to research which ions should be used. This adds to the potential for differences between lab results. Once selected, labs should validate their research, through a series of experiments to ensure the correct precursor and transition (product) ions are being used in the method.

Sample Preparation: Beyond the time-consuming work that is required to develop sound pesticide methods, the extraction step is absolutely critical for credible results. If the pesticides aren’t fully extracted from the cannabis product, then the results will be lower than expected. Sample preparations are often not standardized between labs, so unless a given extraction technique is validated for accuracy, there is the possibility for differences between labs.

Getting a Representative Sample

The current California recommended amount of sample is one gram of product per batch. Batch sizes can vary greatly and it is entirely likely that two different one gram samples can have two different results for pesticides. Has the entire plant been evenly coated with exactly the same amount of pesticide onto every square inch of its leaves? No, probably not. That is why it is imperative to take a “random” sample, by taking several smaller samples from different areas of the entire batch.

Sampling Plans: We can learn a lot from the manufacturing and sampling best practices developed by the food industry through the years. If a food manufacturer is concerned with the possibility of having a bacteria pathogen, like Salmonella, in their finished product, they test the samples coming off their production lines at a statistically relevant level. This practice (theory) is called the sampling plan and it can easily be adapted to the cannabis industry. The basic premise is that the more you test, the higher your likelihood of catching a contaminate. Envision a rectangular swimming pool, but instead of water, it’s filled with jello. In this gelatinous small pool, 100 pennies are suspended at varying levels. The pennies represent the contaminates.

Is the pool homogenized? Is jello evenly represented in the entire pool? Yes. 

Is your concentrate evenly distributed in the extraction vessel? Yes. The question is, where are the pennies in that extraction vessel? The heavy metals, the microbial impurities and the pesticides should be evenly distributed in the extraction vessel but they may not be evenly represented in each sample that is collected. Unfortunately, this is the bane of the manufacturing industry and it’s the unfortunate reality in the food industry. If you take one random cup of jello, will you find the penny? Probably not. But it you take numerous 1 cup samples from random areas within the batch, you increase your chances of finding the contaminate. This is the best approach for sampling any cannabis product.

The best way to approve a batch of cannabis product is to take several random samples and composite them. But you may need to run several samples from this composite to truly understand what is in the batch. In the swimming pool example, if you take one teaspoon scoop, will you find one of the pennies? The best way to find one of the pennies is to take numerous random samples, composite them and increase the number of tests you perform at the lab. This should be done on any new vendor/cultivator you work with, in order to help establish the safety of the product.

From The Lab

I Was Wrong… und das ist auch gut so!

By Dr. Markus Roggen
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I was wrong. And that’s a good thing! Based on all available data, I assumed that evaporating ethanol from a cannabis oil/ethanol solution would result in terpene loss. As it turns out, it doesn’t. There are so many beliefs and assumptions about cannabis: Cannabis cures cancer!1 Smoking cannabis causes cancer!2 Sativas help you sleep; Indicas make you creative!3,4 CBD is not psychoactive!5 But are these ‘facts’ backed by science? Have they been experimentally tested and validated?

I postulated a theory, designed experiments to validate it and evaluated the results. Simply putting “cannabis backed by science” on your label does not solve the problem. Science is not a marketing term. It’s not even a fixed term. The practice of science is multifaceted and sometimes confusing. It evolved from the traditional model of Inductivism, where observations are used in an iterative process to refine a law/theory that can generalize such observations.6 Closely related is Empiricism, which posits that knowledge can only come from observation. Rationalism, on the other hand, believes that certain truths can be directly grasped by one’s intellect.7 In the last century, the definition of science was changed from the method by which we study something, such as Inductivism or Rationalism, and refocused on the way we explain phenomena. It states that a theory should be considered scientific if, and only if, it is falsifiable.8 All that means is that not the way we study something is what makes it scientific, but the way we explain it.

I wonder how can we use empirical observations and rational deliberations to solve the questions surrounding cannabis? And more importantly, how can we form scientific theories that are falsifiable? Cannabis, the plant, the drug, has long been withheld from society by its legal status. As a result, much of what we know, in fact, the entire industry has thrived in the shadows away from rigorous research. It’s time for this to change. I am particularly concerned by the lack of fundamental research in the field. I am not even talking about large questions, like the potential medical benefit of the plant and its constituents. Those are for later. I’m talking about fundamental, mundane questions like how many lumens per square centimetre does the plant need for optimal THC production? What are the kinetics of cannabis extraction in different solvents? What are the thermodynamics of decarboxylation? Where do major cannabinoids differ or align in terms of water solubility and viscosity?

The lack of knowledge and data in the cannabis field puts us in the precarious position of potentially chasing the wrong goals, not to mention wasting enormous amounts of time and money. Here’s a recent example drawn from personal experience:Certainly, I cannot be the only one who has made an incorrect assumption based on anecdotes and incomplete data?

Some of the most common steps in cannabis oil production involve ethanol solutions. Ethanol is commonly removed from extraction material under reduced pressure and elevated heat in a rotary evaporator. I expected that this process would endanger the terpenes in the oil – a key component of product quality. My theory was that volatile terpenes9 would be lost in the rotary evaporator during ethanol10 removal. The close values of vapor pressure for terpenes and ethanol make this a reasonably assumed possibility.11 In the summer of 2018, I finally got the chance to test it. I designed experiments at different temperatures and pressures, neat and in solution, to quantify the terpene lost in ethanol evaporation. I also considered real life conditions and limitations of cannabis oil manufacturers. After all the experiments were done, the results unequivocally showed that terpenes do not evaporate in a rotary evaporator when ethanol is removed from cannabis extracts.12 As it turns out, I was wrong.

We, as an industry, need to start putting money and effort into fundamental cannabis research programs. But, at least I ran the experiments! I postulated a theory, designed experiments to validate it and evaluated the results. At this point, and only this point, can I conclude anything about my hypothesis, even if that is that my working theory needs to be revised. Certainly, I cannot be the only one who has made an incorrect assumption based on anecdotes and incomplete data?

There is a particular danger when using incomplete data to form conclusions. There are many striking examples in the medical literature and even the casual observer might know them. The case of hormone replacement therapy for menopause and the associated risks of cardiovascular diseases showed how observational studies and well-designed clinical trials can lead to contradicting results.13 In the thirties of the last century, lobotomy became a cure-all technique for mental health issues.14 Dr. Moniz even won the Nobel Prize in Medicine for it.15 And it must come as no surprise when WIRED states “that one generation’s Nobel Prize-winning cure is another generation’s worst nightmare.”16 And with today’s knowledge is impossible to consider mercury as a treatment for syphilis, but that is exactly what it was used as for many centuries.17 All those examples, but the last one in particular should “be a good example of the weight of tradition or habit in the medical practice, […] of the necessity and the difficulties to evaluate the treatments without error.”18 There is the danger that we as cannabis professionals fall into the same trap and believe the old stories and become dogmatic about cannabis’ potential.

We, as an industry, need to start putting money and effort into fundamental cannabis research programs. That might be by sponsoring academic research,19 building in-house research divisions,20 or even building research networks.21 I fully believe in the need for fundamental cannabis research, even the non-sexy aspects.22 Therefore, I set up just that: an independent research laboratory, focused on fundamental cannabis research where we can test our assumptions and validate our theories. Although, I alone cannot do it all. I likely will be wrong somewhere (again). So, please join me in this effort. Let’s make sure cannabis science progresses.

References

  1. No, it does not. There are preliminary in-situ studies that point at anti-cancer effects, but its more complicated. The therapeutic effects of Cannabis and cannabinoids: An update from the National Academies of Sciences, Engineering and Medicine report, Abrams, Donald I., European Journal of Internal Medicine, Volume 49, 7 – 11
  2. No, it does not. National Academies of Sciences, Engineering, and Medicine. 2017. The Health Effects of Cannabis and Cannabinoids: The Current State of Evidence and Recommendations for Research. Washington, DC: The National Academies Press. https://doi.org/10.17226/24625.
  3. No, it does not. The chemical profile of the plant dictates the biological effects on humans, not the shape of the leaf.  Justin T. Fischedick, Cannabis and Cannabinoid Research, Volume: 2 Issue 1: March 1, 2017
  4. Indica and Sativa are outdated terms. Piomelli D, Russo EB. The Cannabis sativa versus Cannabis indica debate: An Interview with Ethan Russo, MD. Cannabis Cannabinoid Res 2016; 1: 44–46.
  5. No, it is. CBD’s supposed “calming effects” is indeed a psychoactive effect. However, it is not intoxicating like THC. Russo E.B., Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects.Br. J. Pharmacol. 2011; 163: 1344-1364
  6. As attributed to Francis Bacon.
  7. See the work by philosopher Baruch Spinoza.
  8. As theorized by Karl Popper.
  9. Monoterpenes have a vapor pressure in the low to mid hundreds of Pascals at room temperature.
  10. Vapor pressure of 5.95 kPa at 20˚C.
  11. Furthermore, there is always the possibility of azeotropes in complex mixtures. Azeotropes are mixtures of two or more liquids that have different boiling points individually, but in mixture boil together.
  12. Terpene Retention via Rotary Evaporator Application Note, Heidolph North America
  13. https://www.pharmaceutical-journal.com/research/review-article/establishing-the-risk-related-to-hormone-replacement-therapy-and-cardiovascular-disease-in-women/20202066.article?firstPass=false
  14. https://psychcentral.com/blog/the-surprising-history-of-the-lobotomy/
  15. https://en.wikipedia.org/wiki/António_Egas_Moniz
  16. https://www.wired.com/2011/03/lobotomy-history/
  17. https://www.infezmed.it/media/journal/Vol_21_4_2013_10.pdf
  18. https://www.ncbi.nlm.nih.gov/pubmed/11625051
  19. Canopy Growth funds a professorship of cannabis science at UBC. Tilray collaborates with UCSD on a phase I/II clinical trial.
  20. For examples see: NIBR, PMISCIENCE.
  21. For examples see: CEMI, theAIRnet, Future Sky.
  22. Research that does not lead to short-term stock value spikes but long-term progress

Heavy Metals Testing: Methods, Strategies & Sampling

By Charles Deibel
3 Comments

Editor’s Note: The following is based on research and studies performed in their Santa Cruz Lab, with contributions from Mikhail Gadomski, Lab Manager, Ryan Maus Technical Services Analyst, Laurie Post, Director of Food Safety & Compliance, and Charles Deibel, President Deibel Cannabis Labs.

Heavy metals are common environmental contaminants resulting from human industrial activities such as mining operations, industrial waste, automotive emissions, coal fired power plants and farm/house hold water run-off. They affect the water and soil, and become concentrated in plants, animals, pesticides and the sediments used to make fertilizers. They can also be present in low quality glass or plastic packaging materials that can leach into the final cannabis product upon contact. The inputs used by cultivators that can be contaminated with heavy metals include fertilizers, growing media, air, water and even the clone/plant itself.

The four heavy metals tested in the cannabis industry are lead, arsenic, mercury and cadmium. The California Bureau of Cannabis Control (BCC) mandates heavy metals testing for all three categories of cannabis products (inhalable cannabis, inhalable cannabis products and other cannabis and cannabis products) starting December 31, 2018. On an ongoing basis, we recommend cultivators test for the regulated heavy metals in R&D samples any time there are changes in a growing process including changes to growing media, cannabis strains, a water system or source, packaging materials and fertilizers or pesticides. Cultivators should test the soil, nutrient medium, water and any new clones or plants for heavy metals. Pre-qualifying a new packaging material supplier or a water source prior to use is a proactive approach that could bypass issues with finished product.

Testing Strategies

The best approach to heavy metal detection is the use of an instrument called an Inductively Coupled Plasma Mass Spectrometry (ICP-MS). There are many other instruments that can test for heavy metals, but in order to achieve the very low detection limits imposed by most states including California, the detector must be the ICP-MS. Prior to detection using ICP-MS, cannabis and cannabis related products go through a sample preparation stage consisting of some form of digestion to completely break down the complex matrix and extract the heavy metals for analysis. This two-step process is relatively fast and can be done in a single day, however, the instruments used to perform the digestion are usually the limiting step as the digesters run in a batch of 8-16 samples over a 2-hour period.

Only trace amounts of heavy metals are allowed by California’s BCC in cannabis and cannabis products. A highly sensitive detection system finds these trace amounts and also allows troubleshooting when a product is found to be out of specification.

For example, during the course of testing, we have seen lead levels exceed the BCC’s allowable limit of 0.5 ppm in resin from plastic vape cartridges. An investigation determined that the plastic used to make the vape cartridge was the source of the excessive lead levels. Even if a concentrate passes the limits at the time of sampling, the concern is that over time, the lead leached from the plastic into the resin, increasing the concentration of heavy metals to unsafe levels.

Getting a Representative Sample

The ability to detect trace levels of heavy metals is based on the sample size and how well the sample represents the entire batch. The current California recommended amount of sample is 1 gram of product per batch.  Batch sizes can vary but cannot be larger than 50 pounds of flower. There is no upper limit to the batch sizes for other inhalable cannabis products (Category II).

It is entirely likely that two different 1 gram samples of flower can have two different results for heavy metals because of how small a sample is collected compared to an entire batch. In addition, has the entire plant evenly collected and concentrated the heavy metals into every square inch of it’s leaves? No, probably not. In fact, preliminary research in leafy greens shows that heavy metals are not evenly distributed in a plant. Results from soil testing can also be inconsistent due to clumping or granularity. Heavy metals are not equally distributed within a lot of soil and the one small sample that is taken may not represent the entire batch. That is why it is imperative to take a “random” sample by collecting several smaller samples from different areas of the entire batch, combining them, and taking a 1 g sample from this composite for analysis.

References

California Cannabis CPA. 12/18/2018.  “What to Know About California’s Cannabis Testing Requirements”. https://www.californiacannabiscpa.com/blog/what-to-know-about-californias-cannabis-testing-requirements. Accessed January 10, 2019.

Citterio, S., A. Santagostino, P. Fumagalli, N. Prato, P. Ranalli and S. Sgorbati. 2003.  Heavy metal tolerance and accumulation of Cd, Cr and Ni by Cannabis sativa L.. Plant and Soil 256: 243–252.

Handwerk, B. 2015.  “Modern Marijuana Is Often Laced With Heavy Metals and Fungus.” Smithsonian.com. https://www.smithsonianmag.com/science-nature/modern-marijuana-more-potent-often-laced-heavy-metals-and-fungus-180954696/

Linger, P.  J. Mussig, H. Fischer, J. Kobert. 2002.  Industrial hemp (Cannabis sativa L.) growing on heavy metal contaminated soil: fibre quality and phytoremediation potential. Ind. Crops Prod. 11, 73–84.

McPartland, J. and K. J McKernan. 2017.  “Contaminants of Concern in Cannabis: Microbes, Heavy Metals and Pesticides”.  In: S. Chandra et al. (Eds.) Cannabis sativa L. – Botany and Biotechnology.  Springer International Publishing AG. P. 466-467.  https://www.researchgate.net/publication/318020615_Contaminants_of_Concern_in_Cannabis_Microbes_Heavy_Metals_and_Pesticides.  Accessed January 10, 2019.

Sidhu, G.P.S.  2016.  Heavy metal toxicity in soils: sources, remediation technologies and challenges.   Adv Plants AgricRes. 5(1):445‒446.

Soapbox

ERP’s Role in Ensuring Traceability & Compliance in the Cannabis Market

By Daniel Erickson
1 Comment

Recent trends in the cannabis space and media headlines reveal the challenges and complexities of the evolving cannabis industry with regard to traceability and compliance. Keeping abreast of the evolving state of legislative requirements is complex and requires effective procedures to ensure your business will flourish. At the forefront is the need to provide complete seed-to-sale traceability from the cannabis plant to the consumer, increasing the demand for effective tracking and reporting technologies to assure cultivators, manufacturers, processors and dispensaries are able to meet regulatory compliance requirements. An enterprise resource planning (ERP) solution offers a business management solution designed to integrate all aspects from the greenhouse and growing to inventory, recipe/formulation, production, quality and sales, providing complete traceability to meet compliance regulations.

The main force driving cannabusinesses’ adoption of strict traceability and secure systems to monitor the growth, production and distribution of cannabis is the Cole Memorandum of 2013 issued by former US Deputy Attorney General James Cole. The document was designed to prevent the distribution of cannabis to minors, as well as prevent marijuana revenue from being used for criminal enterprises. Due to the non-legal status of cannabis on the federal level, the memo provides guidance for states whose voters have passed legislation permitting recreational or medical cannabis use. If states institute procedures for transparent inventory control and tracking documentation, the memo indicates that the federal government will refrain from interference and/or prosecution. Despite the Trump administration rescinding the memo in early 2018, companies have largely continued to follow its guidelines in an attempt to avoid targeted enforcement of federal law. Local government reporting is a primary reason for strict inventory control, necessitating reliable traceability documentation of the chain-of-custody. 

Process metrics within an ERP solution are essential in providing the accountability necessary to meet required cannabis compliance initiatives. With a centralized, streamlined and secure system, each process becomes documented and repeatable – enabling best practices to provide an audit trail for accountability in all cannabis activities. Whether cultivating, extracting, manufacturing or dispensing cannabis, an ERP’s functionality assists with compliance demands to manage and support traceability and other state-level requirements.

An ERP solution solves the traceability and compliance issues faced by the industry by providing inventory control management and best practices that automates track and trace record keeping from seed to consumer. Growers are also implementing cultivation management solutions within their ERP and highly secure plant identification methods to mobilize greenhouse and inventory to support real-time tracking. Monitoring the loss of inventory due to damage, shrinkage, accidentally or purposeful destruction is efficiently documented to assure that inventory is accounted for. Similar to other process manufacturing industries, it is possible to produce tainted or unsafe products, therefore an ERP solution that supports product recall capabilities is fundamental. With a centralized framework for forward and backward lot, serial and plant ID tracking, the solution streamlines supply chain and inventory transactions to further ensure compliance-driven track and trace record keeping is met.

Local government reporting is a primary reason for strict inventory control, necessitating reliable traceability documentation of the chain-of-custody. Data regarding inventory audit and inspection details, complete with any discrepancies, must be reported to a states’ seed-to-sale tracking system to conform with legal requirements. An ERP utilizes cGMP best practices and reporting as safeguards to keep your company from violating compliance regulations. Failure to complete audits and meet reporting guidelines can be detrimental to your bottom line and lead to criminal penalties or a loss of license from a variety of entities including state regulators, auditors and law enforcement agencies. A comprehensive ERP solution integrates with the state-administered traceability systems more easily and reliably as compared to manual or stand-alone systems – saving time, money and detriment resulting from non-compliance.

Similar to other food and beverage manufacturers, the growing market for cannabis edibles can benefit from employing an ERP system to handle compliance with food safety initiatives – encompassing current and future requirements. Producers of cannabis-infused products for recreational and medicinal use are pursuing Global Food Safety Initiative (GFSI) certification, employing food safety professionals and implementing comprehensive food safety practices–taking advantage of ERP functionality and processes currently in place in similarly FDA regulated industries.

As legalization continues and reporting regulations standardize, dynamic cannabis ERP solutions for growers, processors and dispensaries will evolve to meet the demands and allow for operations to grow profitably.In addition to lot, serial and plant ID tracking, tracing a product back to the strain is equally important. An ERP can efficiently trace a cannabis strain from seedling through the final product, monitoring its genealogy, ongoing clone potency, CBD and THC content ratios and other attributes. The health, weight and required growing conditions of each individual plant or group of plants in the growing stages may be recorded throughout the plant’s lifecycle. In addition, unique plant identification regarding the performance of a particular strain or variety, how it was received by the market and other critical elements are tracked within ERP system. This tracking of particular strains assists with compliance-focused labeling and determining the specific market for selling and distribution of cannabis products.

Collecting, maintaining and accessing traceability and compliance data in a centralized ERP system is significant, but ensuring that information is safe from theft or corruption is imperative as well. An ERP solution with a secure platform that employs automated backups and redundancy plans is essential as it uses best practices to ensure proper procedures are followed within the company. User-based role permissions provide secure accessibility restricted to those with proper authorization. This level of security allows for monitoring and recording of processes and transactions throughout the growing stages, production and distribution; ensuring accountability and proper procedures are being followed. Investing in an ERP solution that implements this level of security aids companies in their data assurance measures and provides proper audit trails to meet regulations.

In this ever-changing industry, regulatory compliance is being met by cannabusinesses through the implementation of an ERP solution designed for the cannabis industry. Industry-specific ERP provides functionality to manage critical business metrics, inventory control, local and state reporting and record keeping, and data security ensuring complete seed-to-sale traceability while offering an integrated business management solution that supports growth and competitive advantage in the marketplace. As legalization continues and reporting regulations standardize, dynamic cannabis ERP solutions for growers, processors and dispensaries will evolve to meet the demands and allow for operations to grow profitably.