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.
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.”
Mistake #5: Planning Just-In-Time Inventory Too Close to Production; Effecting On-time Deliveries
Using JIT (Just-In-Time) management is common throughout North America. JIT involves manufacturers and suppliers trying to minimize, or even eliminate, their inventory. This approach relies on suppliers to deliver materials just before production is started. When this method is done properly, it is a very efficient way to minimize production costs, but when companies do not prepare for a “crisis” situation, they will have nothing in stock to fall back on.
Minimizing inventory costs is always a challenge. It’s a never-ending contradiction trying to maintain low inventory costs while factoring the percentage of potential new growth. Calculations can fluctuate from month to month, especially when industries rely on commodity ingredients or are impacted by sudden regulatory changes like we see with the cannabis, food packaging, and health supplement markets. Front runners in these markets practice minimizing their product label inventories, but their needs might quickly change from one day to the next. They do not want to place a one-time annual label order for each SKU. If an ingredient runs out of supply or a regulatory change affects their production profile, they would be sitting on unusable labels that will go to waste.
Best Method Approach: Think in terms of what the bottom line effect will be when factoring how you should manage your inventory. Try not to reduce your inventory too low. This could cause your company to experience shipping delays when complications arise with suppliers or quality control. You should have at least one-to-two production cycles worth of inventory available for those “crisis” moments.
Rob Freeman, author of this article, is the Director of Business Development and Marketing at Label Solutions Inc.
This backup inventory can also help reduce paying for excessive rush fees. Sometimes businesses can experience unexpected demand for a product, especially when companies consolidate production plants, acquire other companies, or have a new product launch. Supplier material shortages can greatly impact internal quality control and delay delivery times. Building a strong business relationship with your label provider is key to working around business demands and potential problems; which in turn, will help your label provider ship on-time deliveries so your production deadlines are met.
Mistake #6: Selecting the Lowest Price, But Approving the Wrong Materials for Your Product Needs
Sometimes clients buy the lowest priced labels without their procurement department knowing what the label specification requirements should be. It’s always a good business practice to shop for the best price, but it is equally as important to make sure you understand what you’re buying for that price.
Label providers vary on the quality of work they do, value-added services they offer, their production expertise, and the quality of material they use. Additionally, the hidden potential costs to lowest price shopping is that once the construction of those labels fail, it could cost you much more than a simple reorder.
Best Method Approach:Establish clear and concise procedures so your production team can forward the necessary criteria for your procurement department to have during the buying process.
brands want strong, eye-catching labels that stand out online, on the shelf, and/or on the retail floor. On a separate note, some businesses and manufacturers don’t care how long their brand and contact information remains on their product after the purchase. This gives them the flexibility to buy extremely low-quality material, but the outcome is a much lower brand awareness reminder at the end of the product’s use. But if your business model is such that you sell a “one-time use” product and all that you need is the label to survive through the POS, then the cheapest materials and lowest price might be your best solution.
In most cases, brands want strong, eye-catching labels that stand out online, on the shelf, and/or on the retail floor. Manufacturers want their labels to remain on their product, so their customers have a reminder of what they need to buy again or the ability to reread product use instructions and label warnings. Even if you don’t require the most expensive materials, using good quality, durable substrates and inks is always a solid approach.
Mistake #7: Not Preparing for Oil Based Products
One of the most popular products expected in retail for 2019 will be essential oils and/or CBD infused oil ingredients in foods, drinks, and wellness supplements. One of the most common mistakes relating to oil-based products is that entrepreneurs often forget that oils can soak into paper substrates and/or disperse certain inks, even when laminated.
Whether your product is on display in retail, or being sampled at a trade show, the last thing you want to be concerned about is your product name and contact information smearing or washing out. Even the smallest drop of oil can seep into a paper label and spread the ink to the point that you’ll have your own little tie-dye action on the label. That might look cool to some, but you lose your branding and the perception with most retail customers will be that your company is either cheap or is not professional.
Best Method Approach: There are affordable films such as polypropylene materials that will allow you to print the look you want while still protecting your branding and product. From cooking oils to industrial grade oils, the approach is the same but may require different types of films and ink solubility, so each bottle and container has oil resistant labels that maintain a professional look.Whenever one of our clients launch a new product or changes the intended surface conditions for label application, testing the label is always extremely important
If you’re feeling overwhelmed, remember that you don’t need to select all the label materials on your own. Your label provider should help you settle on the best solution.
Mistake #8: Not Properly Testing New Labels and New Product Surfaces
This is one of the most common and overlooked issues. Whenever one of our clients launch a new product or changes the intended surface conditions for label application, testing the label is always extremely important. This is especially critical when dealing with high quantity orders.
Best Method Approach: Testing parameters should be outlined by you and your label provider so both parties understand how long the label and the ink consistency should remain on the surface after purchase and use of product. There are wide variations of testing, so it will depend on the type of product and the intended industry.
For example, testing hand-applied, durable labels on powder coated metals for the boat and trailer industry require a completely different testing method compared to tests for typical food and beverage products that are machine applied. Usually, with uniform container products like food clamshell packaging, beverage cans, and supplement jars, all you will need to do is make sure to test labels on your production line, so your team is confident with the results.
Final Thoughts
In summary, preventing just one of these mistakes can yield huge cost savings no matter if your company is a start-up or a large corporation. Even if these eight common mistakes do not directly apply to your own issues, hopefully the “Best Methods” approach will give your company ideas about how you can prepare for future product releases, reduce product label issues, and improve your own quality control metrics.
If you have topics relating to product labeling that you would like me to discuss, please write to info@easylabeling.com. Be sure to save this article and forward it to your peers for future reference.
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.
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.
For those who have been watching (if not in the thick of) the drama over Israeli medical cannabis export rights, this latest development was not only inevitable but overdue. Israel’s parliament unanimously approved the legislation on Christmas Day (along with Thailand). Less than a month later, the cabinet concurred.
That means that export rights are now actionable law.
Beyond this final passage into reality, export rights have been at the forefront of a global drama on cannabis- most recently in this part of the world, as a specific chip in political dealmaking between U.S. President and Israel’s Prime Minister, Benjamin Netanyahu since the former entered office. This go around at least.
Tel Aviv, Israel
The political bargaining that even allowed Israel’s medical program to flourish and get funding from its earliest days (including of the U.S. federal government kind) of course, is nothing new.
Pioneers Of The Cannabis Industry
Hard as it is to believe, most of what is widely known and easily digitally shared (including on social media) about cannabis (as a plant, let alone distinctions between cannabinoids) is information created during this last four to eight-year period (certainly since 2010). This has been driven by reform, and a birth of wider education about medical and recreational cannabis plus the cannabis industry and broader lifestyle press. And most of what is credible out there, no matter who claims credit today, has an Israeli origin, and of the medical kind.
Add this history of scientific research and insight to the philosophy of a nation driven by entrepreneurial zest, and say no more.
Now that Israel can begin to export its cannabis, the interesting thing to see is whether cannatech will in the end, be more valuable than individual strains themselves. The pick axe in this particular “green gold rush?”
For now, of course, all bets are off, even on the cultivation front. Because, no matter what else it is, it is well timed, globally, to give even the Israeli medical production market a big green shot in the arm.
Germany and Europe Beckons
The change in the law in Israel also comes as those who made first qualifying round in the German cultivation bid are getting prequalification letters, although this time, no firms, anywhere, have issued press releases about their finalist round status.
And here is the other issue to consider: While the bid itself does not have anything to do with import capability, new Israeli game in town is, in itself, a big game changer for anyone whose hat was thrown into the coalitions who applied for the pending cultivation license. Why? Until they deliver their first crops grown auf Deutschland, firms have to deliver from somewhere. And this being Germany, the import destination has to be from a place where the plant is federally legal. Israel becomes another option in a market so far dominated by Dutch and Canadian firms.
The Tikun Olam strain Avidekel being grown in Israel.
Can you smell new bid lawsuits also, if this scenario has not already been addressed by BfArM? The history of cannabinoids in Germany in general (historically as well as recently) is fraught already. This pending challenge, should it come, will be laden with symbology modern Germany will do everything to avoid provoking.
Beyond the soap opera that the bid has turned into in Germany (the ultimate test case for cultivation and insurance-backed medical and industry acceptance across the rest of the EU essentially), there are of course, other markets beckoning. This includes all of Eastern Europe and much of the EU. This includes France and the UK immediately.
In other words, no matter what the longer-term impacts will be, this well timed, politically astute Israeli decision is coming at the beginning of what is going to be, as everyone is clearly seeing at the end of January, a momentous and earth-shaking year not only for Europe, but globally.
And that is big business for a little country with an eye on the export game.
For all the success of the cannabis market in the United States, there are two big issues that still confound the industry because of a lack of federal reform. The first, of course, is national recognition of an industry that still struggles with banking, insurance and selling products across state lines. The other is international trade.
However, it appears that one Colorado-based company, United Cannabis, has now successfully begun to navigate the complex regulatory and standards puzzle, and further, has set up trade and import agreements in both France and Switzerland. Even more interesting? It managed to do the same before the passage of the Farm Bill.
At present they are exporting to Europe from Florida – but the fact that they are exporting in the European direction at all is a feat still unmatched by many other American firms all looking to do the same thing.
Francis Scanlan, founder of Cloud 9 Switzerland
In Switzerland, they are also partnering with an equally intriguing firm called Cloud 9 Switzerland. We sat down with Francis Scanlan, founder of Cloud 9 Switzerland, to talk about what they are doing and how they are doing it- and from the European perspective.
The First Compliant Swiss Chocolate Maker
Cloud 9 is a start-up that is going head to head with the larger Canadian firms in innovative ways and in several directions. That includes the creation of food and beverage products. It also includes pharmaceuticals.
As of January 22, 2019, Cloud 9 also received approval from Swiss authorities to proceed with production of what will be, as Scanlan describes it, “the first EU-compliant hemp chocolate bar.” The hemp they are using contains a full spectrum hemp extract, which does not fall under the rubric of a so-called “novel food” because hemp has been a product in the consumer market here for a long time.
The product will be on Italian shelves as of the end of Q1 this year. Beyond the regulatory approvals necessary to get to market, it also took him about a year to find and convince a chocolate manufacturer in Switzerland to work with him.
Scanlan describes his year and a half old firm as the “value added” between suppliers, manufacturers and distributors. With a background in the corporate food and beverage industry including a stint at Nestlé, he and his team create the formulations and commercialize new products. And they keep a sharp eye on the regulatory bottom line in Europe.
Cloud 9’s corporate mission, Scanlan says, is to improve the quality of life and wellness of their customers. “We are not in the opportunistic marketing business” he says. “We want to create products that really benefit people. Our motto has always been Win-Win for both our partners and consumers.”
Bringing A Glaucoma Drug To The EU Market
However do not mistake Cloud 9 or even Scanlan himself as a kind of cannabis Willy Wonka one hit wonder. Or a firm that is solely operating in the wellness space. They are also now working to bring a Glaucoma drug into the EU where they will begin with medical trials to start the approval process. That said, Scanlan is confident about the success of this product as well. “It has a great dossier in its home country,” he says. “And that has also already caught the interest of doctors in Italy and Switzerland.”
Beyond that, there are other plans in the works, including the introduction of a transdermal patch that delivers cannabinoids through the skin. “The great thing about this kind of approach,” Scanlan says, “is that it allows people to get over their fear of orally ingested drugs. They don’t like the effect, they can just take it off.” He also noted that the patch uses a patented technology that allows a far more efficient delivery mechanism, which creates a time-delayed medication approach and allows for a 90% transfer of cannabinoids.
In other words, this small, privately funded start-up, using innovative approaches to a market Scanlan knows well, is absolutely in the ring and going to market. And further doing so with a European mindset and operating philosophy that incorporates not only hemp exported from the American hemisphere, but is mixed with a large dollop of good old “American” entrepreneurial gusto and inclinations.
Disclaimer: Cloud9 is a sponsor of the MedPayRx pilot to market program in the EU.
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.
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
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
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.
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
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.
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
As attributed to Francis Bacon.
See the work by philosopher Baruch Spinoza.
As theorized by Karl Popper.
Monoterpenes have a vapor pressure in the low to mid hundreds of Pascals at room temperature.
Vapor pressure of 5.95 kPa at 20˚C.
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.
Terpene Retention via Rotary Evaporator Application Note, Heidolph North America
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.
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.
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.
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