Tag Archives: Testing

HACCP

Hazard Analysis and Critical Control Points (HACCP) for the Cannabis Industry: Part 4

By Kathy Knutson, Ph.D.
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HACCP

In Part 3 of this series on HACCP, Critical Control Points (CCPs), validation of CCPs and monitoring of CCPs were defined. When a HACCP plan identifies the correct CCP, validates the CCP as controlling the hazard and monitors the CCP, a potential hazard is controlled in the manufacturing and packaging of cannabis-infused edibles. The food industry is big on documentation. If it’s not documented, it did not happen. The written hazard analysis, validation study and monitoring of CCPs create necessary records. It is these records that will prove to a customer, auditor or inspector that the edible is safe. Here in Part 4, more recordkeeping is added on for deviation from a CCP, verification and a recall plan. 

Take Corrective Action When There Is a Deviation from a Critical Control Point

Your food safety team conducts a hazard analysis, identifies CCPs and decides on monitoring devices, frequency and who is responsible for monitoring. You create an electronic or paper record of the monitoring for every batch of edible to document critical limits were met. Despite all your good efforts, something goes wrong. Maybe you lose power. Maybe the equipment jams. Nothing is perfect when dealing with ingredients, equipment and personnel. Poop happens. Because you are prepared before the deviation, your employees know what to do. With proper training, the line worker knows what to do with the equipment, the in-process product and who to inform. In most cases the product is put on hold for evaluation, and the equipment is fixed to keep running. The choices for the product include release, rework or destroy. Every action taken needs to be recorded on a corrective action form and documents attached to demonstrate the fate of the product on hold. All the product from the batch must be accounted for through documentation. If the batch size is 100 lb, then the fate of 100 lb must be documented.

Verify Critical Control Points Are Monitored and Effective

First, verification and validation are frequently confused by the best of food safety managers. Validation was discussed as part of determining CCPs in Part 3. Validation proves that following a CCP is the right method for safety. I call validation, “one and done.” Validation is done once for a CCP; while verification is ongoing at a CCP. For example, the time and temperature for effective milk pasteurization is very well known and dairies refer to the FDA Pasteurized Milk Ordinance. Dairies do not have to prove over and over that a combination of time and temperature is effective (validation), because that has been proven.

I encourage you to do as much as you can to prepare for a recall.A CCP is monitored to prove the safety parameters are met. Pasteurization is an example of the most commonly monitored parameters of time and temperature. At a kill step like pasteurization, the employee at that station is responsible for accurate monitoring of time and temperature. The company managers and owners should feel confident that CCPs have been identified and data are being recorded to prove safety. Verification is not done by the employee at the station but by a supervisor or manager. The employee at the station is probably not a member of the food safety team that wrote the HACCP plan, but the supervisor or manager that performs verification may be. Verification is proving that what was decided by the food safety team is actually implemented and consistently done.

Verification is abundant and can be very simple. First, every record associated with a CCP is reviewed by a supervisor or manager, i.e. someone who did not create the record. This can be a simple initial and date at the bottom of the record. Every corrective action form with its associated evaluation is verified in the same way. When HACCP plans are reviewed, that is verification. Verification activities include 1) testing the concentration of a sanitizer, 2) reviewing Certificates of Analysis from suppliers, 3) a review of the packaging label and 4) all chemical and microbiological testing of ingredients and product. The HACCP plan identifies CCPs. Verification confirms that implementation is running according to the plan.

Verification is like a parent who tells their child to clean their room. The child walks to their room and later emerges to state that the room is clean. The parent can believe the word of the child, if the child has been properly trained and has a history of successfully cleaning their room. At some frequency determined by the parent, the room will get a parental visual check. This is verification. In the food industry, CCP monitoring records and corrective action must be reviewed within seven days after the record is created and preferably before the food leaves the facility. Other verification activities are done in a timely manner as determined by the company.

Food processing and sanitation
Product recalls due to manufacturing errors in sanitation cause mistrust among consumers.

Write a Recall Plan

In the food industry, auditors and FDA inspectors require a written recall plan. Mock recalls are recommended and always provide learning and improvement to systems. Imagine your edible product contains sugar, and your sugar supplier notifies you that the sugar is recalled due to glass pieces. Since you are starting with the supplier, that is one step back. Your documentation of ingredients includes lot numbers, dates and quantity of sugar.You keep good records and they show you exactly how much of the recalled lot was received. Next you gather your batch records. Batches with the recalled sugar are identified, and the total amount of recalled sugar is reconciled. You label every batch of your edible with a lot code, and you identify the amount of each affected lot and the customer. You have a press release template in which you add the specific information about the recall and affected lots. You notify every customer where the affected edible was shipped with a plan to return or destroy the edible. When you notify your customers, you go one step forward.

How would your company do in this situation? I have witnessed the difficulties a company faces in a recall when I was brought in to investigate the source of a pathogen. Food safety people in my workshops who have worked through a recall tell me that it was the worst time of their life. I encourage you to do as much as you can to prepare for a recall. Here are two good resources:

Please comment on this blog post below. I love feedback!

Steven Burton
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Why Traceability Is Crucial for the Cannabis Industry

By Steven Burton
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Steven Burton

The stage is set: cannabis legalization is rolling out around the world. With legalization comes regulations and smart companies will adapt to make new requirements work for them. In the end, our shared goal (as industry, consumers and government) is the same: provide safe, high-quality, reliable products. This is where traceability comes in.

If a cannabis product isn’t safe (cannabis is vulnerable to the same kinds of hazards as most food products), the reputation of the entire industry suffers. Earning public trust is the first step toward favorable government regulations. With upcoming decisions that will decide taxation and distribution, it’s more important than ever that cannabis producers can react quickly if recalls should occur – and that means taking traceability seriously.

Comprehensive Traceability for Cannabis Means More Than Legality

A crucial key to producing safe and high-quality cannabis products is detailed traceability. Many states require cannabis businesses to use systems like Metrc, a technology that uses RFID tags to track cannabis from seed to sale to ensure nothing is diverted to the black market. However, Metrc focuses only on the chain of custody, not on the safety or quality of the product.METRC logo

Ensuring a secure supply chain is only one piece of the cannabis puzzle. Public health hazards like toxic chemical contamination, mold growth and pathogenic contamination introduced by pests or improper employee handling need to be controlled in order to earn public trust and comply with regulations. State-mandated traceability systems don’t address these imperatives, so an effective safety technology that includes traceability, in addition to mandated systems like Metrc, is absolutely necessary to complete the cannabis picture.

Automation Technology Supports Cannabis Companies’ Growth and Helps With Audits

Cannabis professionals are aware of the regulatory scrutiny the industry is under and many have turned to automation technology to help stand up to this scrutiny, as well as collect and manage all the data necessary for compliance. Automating data collection pays off in several ways. For one, interconnected, real-time IoT technologies that are accessible to the entire facility 24/7 are giving cannabis businesses the tools they need to create the best possible products now, as well as providing them with the data they need to make their products even better. Since frequent audits are a part of the legalization transition, automation also makes preparing for audits and inspections a matter of minutes instead of days.

Ron Sigman, chief executive officer of marijuana compliance consulting firm Adherence Corp. and former investigator for the Marijuana Enforcement Division (MED) in Colorado, lists the most common violations for cannabis businesses that he found during more than 200 audits in an interview for Marijuana Business Daily. These violations include:

  • Metrc issues, especially accounting not matching inventory (too many plants or ounces of marijuana on the premises);
  • Security issues like lack of sufficient camera coverage;
  • Failure to upgrade licenses;
  • Improper or incomplete training of new employees.

Adopting safety and traceability concepts that the food industry developed over many decades can yield huge benefits for cannabis businessesA proper cannabis traceability technology mitigates these problems by providing notifications of inventory inconsistencies, certification expirations and more. Traceability for cannabis must be able to handle the complexities of procedures like terpene extraction and injection. With the rapid growth of the industry, it must be able to set targets and track actuals. It should track, not just cannabis plants and related derivatives, but also every other ingredient, material and packaging material used during production. There must be monitoring at each stage of production and a system in place to ensure all employee training is up to date. Preventative maintenance must be scheduled and tracked and hazards must be identified and controlled. In the event of an audit or recall, precise mass-balance calculations must be available to account for every gram of product, including non-cannabis ingredients like coconut oil and packaging materials like pouches and labels.

GMPDetailed traceability can make the difference between a cannabis business keeping their license or being shut down. “You have to make a diligent effort to stay compliant 365 days out of the year, because you never know when a regulatory agency is going to come knocking on your door,” says Sigman. Knowing exactly what went wrong when and where allows a company to make changes so failures don’t happen again.

Higher Standards Will Be Demanded

The standard sought by most in the cannabis industry is only GMP (Good Manufacturing Practice) certification, which is actually the lowest level of certification possible in food production. With the public demand for edibles and concentrates on the rise and major retailers scrambling for seats at the table, the demand for transparency from growers and manufacturers will increase. Cannabis companies will soon find that GMP compliance simply won’t be enough to earn trust and expand their market share, especially when it comes to edibles and concentrates.

SQF-Certified“Every day, patients express interest and assurance of wanting to know that the foods and medicines they consume are safe and of the best quality available,” says Lindsay Jones, president of Curaleaf Florida, the first medical cannabis company in Florida to achieve SQF Certification. Safe Quality Food (SQF) certification ensures a company meets the highest levels of safety and quality on a reliable basis. Curaleaf has set a new bar in the industry that others will be compelled to follow and they should be congratulated for their proactive vision.

Adopting safety and traceability concepts that the food industry developed over many decades can yield huge benefits for cannabis businesses, but it will be interesting to watch the technology evolve to accommodate the specific needs of retailers and consumers. Imagine a traceability system that ensures safety and quality while also tracking consistency and potency.

The Future of Cannabis Is Bright

The emerging cannabis industry is facing challenging hurdles on its path to widespread legalization and acceptance but the forecast is sunny – for companies who are prepared.

New Frontier Data CEO Giadha Aguirre De Carcer, explains that California’s “legal (cannabis) industry is forecast to grow from $2.8 billion in 2017 to $5.6 billion in 2020. That spending will be increasingly directed at products and retailers who understand and serve the market’s evolving tastes and preferences.” That includes implementing comprehensive traceability systems to deliver safe, quality product.

Cannabis Track Added to 2018 Food Safety Consortium

By Cannabis Industry Journal Staff
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The 6thAnnual Food Safety Consortium Conference & Expo has announced a series of talks focused on cannabis. In addition to the categories such as Operations, Detection, Compliance and Supply Chain, the Call for Abstracts now includes a fifth category in this year’s program: Cannabis Quality.

The Cannabis Quality series will feature presentations by subject matter experts in the areas of regulations, edibles manufacturing, cannabis safety & quality as well as laboratory testing. The Food Safety Consortium itself is hosted by our sister publication, Food Safety Tech, but the Cannabis Quality series will be co-hosted by Cannabis Industry Journal as well.

Rick Biros, President/Publisher, Innovative Publishing Co. LLC
Rick Biros, conference director of the Food Safety Consortium

Citing the need to address safety in a burgeoning market, Rick Biros, conference director, believes education is key to helping the cannabis industry mature. “As the cannabis industry evolves, so does the need to protect the consumer,” says Biros. “Just as we protect the safety of our food supply chain, it is important to educate the cannabis industry about protecting their supply chain from seed to sale. Through these educational talks, we want to help bridge that gap, hosting a forum for those in the cannabis industry to interact with food safety professionals.”

The 2018 Food Safety Consortium Conference & Expo will be held November 14–16 in Schaumburg, Illinois. The event is a top food safety conference that features Food Safety and Quality Assurance (FSQA) industry experts and government officials.

The conference focuses on food safety education and networking, providing attendees information on best practices and new technology solutions to today’s food safety challenges. Previous keynote speakers have included food safety leaders such as Stephen Ostroff, M.D., deputy commissioner for Foods and Veterinary Medicine, U.S. Food and Drug Administration and Frank Yiannis, vice president of Food Safety at Walmart and author of Food Safety Culture: Creating a Behavior-Based Food Safety Management System.

Before submitting an abstract, following are a few points to keep in mind:

  • The abstract should be about 300 words
  • Presentations will be judged on educational value
  • Don’t submit a sales pitch!
  • Presentation time is about 45 minutes—this includes a 10-15 Q&A session

To see the Call for Abstracts and submit a presentation for consideration, click here. The deadline for submissions is May 31, 2018. The conference will notify everyone who submits an abstract on the status of acceptance by June 15.

GreenRelief Logo

Green Relief Enters European Market Via Switzerland

By Marguerite Arnold
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GreenRelief Logo

It is old news that Canadian companies are entering the European market. And it is also no stop-the-presses flash that Germany is a big prize in all of this. But there are other Euro markets to watch right now. Switzerland is one of them.

Look for the Canadian influx here too.

One of the more interesting entrants this month? Green Relief – a Canadian LP with a really unique twist. They are the only company in the world to produce cannabis oil from flower grown with aquaponics. This unique method creates unbelievably “clean” cannabis with no pesticides – and no residue of them.

It also sets the company up for a really unique market opportunity on the ground outside Canada. Especially as they have now just announced a partnership with two Swiss companies– Ai Fame GmbH and Ai Lab Swiss AG. Both companies have been leading European pharmaceutical companies since the turn of the century. The idea is to leverage all three company’s intellectual capital with Green Relief’s additional and first international investment with an eye to the entire European cannabis market. Ai Fame specializes in cultivation, manufacturing, sales and distribution to both the food and medical sectors. Ai Lab Swiss AG operates as a laboratory and testing facility.Less than three weeks before Green Relief publicized their European announcement, there were also strategic developments afoot at home.

From this unique perch in the Swiss canton of St Gallen, the three companies are setting up to conquer Europe.

Why Is Switzerland So Strategic?

Switzerland has been on the legalization track since 2011. As of this date, the Swiss government began allowing adults to buy and use CBD-only cannabis. Shops were allowed to obtain licenses. A trickle of sales began. However, rather suddenly, as reform hit Europe, the craze took off. Last year, for the first time, the industry generated a significant amount of revenue (close to $100 million). That is $25 million for the government via taxes- just on CBD sales. Even more intriguing for those looking for market opportunity across borders? Less than a week ago, the German-based budget discount store Lidl just announced they were carrying smokeable CBD  – in Swiss grocery stores. The leap across the border is imminent.

That has opened up other conversations, including the “legalize everything” push that makes an awful lot of sense to the ever tax-aware Swiss. This is a push afoot just about everywhere across the continent, including, of course, just across the border in Germany.

GreenRelief LogoThe cities of Zurich and the cantons of both Winterthur and St Gallen (home of the Swiss companies behind the new venture with Green Relief) have already indicated that they will not pursue possession fines for those busted with 10 grams or less– no matter what kind and even of the THC variety.

Read between the lines, and it is clear that the cannabinoid conversation locally has begun to attract the Canadians. And not just because of the many opportunities of the Swiss CBD market – but the huge medical and THC German and European opportunities now opening beyond that.

No matter which way Green Relief and their new partners slice it, they are now in the game – and across Europe – with a unique new play and product, and further one set to enter both the medical THC and “consumer,” albeit still CBD, market now burgeoning.

A Cross Market Play

Here is the truly interesting part about this new announcement. Less than three weeks before Green Relief publicized their European announcement, there were also strategic developments afoot at home. Cannabis Growth Opportunity Corporation also just announced an investment in Green Relief. The share purchase agreement netted Green Relief $750,000 in both cash and common shares.

With this, Green Relief seems to have set sail on its European expansion. Look for more interesting turns to this developing saga soon!

A2LA Accredits First Rec Alaska Cannabis Lab

By Aaron G. Biros
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The American Association for Laboratory Accreditation (A2LA) announced recently the accreditation of The New Frontier Research (TNFR) laboratory to ISO/IEC 17025:2005. TNFR, based in Wasilla, Alaska, was previously evaluated by A2LA for competence and proficiency to perform the minimum tests required by Alaska.

TFNR is now the first recreational cannabis-testing laboratory in Alaska accredited to ISO/IEC 17025 standard. According to Roger Brauninger, A2LA biosafety program manager, this accreditation is a sign of attention to thorough science. “Cannabis testing laboratories that have gained ISO/IEC 17025 accreditation have demonstrated their competence and commitment to rigorous science,” says Brauninger. “In the greatly scrutinized recreational cannabis industry, we are pleased to have granted the first accreditation of its kind in Alaska.”

roger_headshot
Roger Brauninger, A2LA biosafety program manager

According to the press release, the ISO/IEC 17025 accreditation is the most significant third-party lab accreditation an organization can receive. The standard confirms labs have management, quality and technical systems designed for accurate and repeatable analyses, in addition to proper administrative processes for testing.

Jessica Alexander, technical director of the TNFR laboratory, says this is the first step in many to researching the medical properties of cannabis. “By achieving ISO/IEC 17025 accreditation, The New Frontier Research believes that it advances the cannabis industry as a whole so that we can conduct legitimate research to unlock the amazing potential that this plant has for development of more effective medicines to address problems like opioid dependence and pediatric seizures,” says Alexander.

steep-hill-labs-logo

Steep Hill Announces Major International Expansion

By Aaron G. Biros
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steep-hill-labs-logo

According to a press release, the Steep Hill team announced they are expanding internationally in a big way on Monday. Steep Hill, a well-known cannabis lab-testing and research company with roots in California, announced plans for licensing agreements in Mexico, Germany, Spain, France, Italy, Switzerland and the United Kingdom.

Photo credit: Steep Hill- a petri dish of mold growth from tested cannabis

The Canadian branch of the company, Steep Hill Canada, will lead the expansion efforts into Mexico and the six European Union countries. According to Martin Shefsky, chief executive officer of Steep Hill Worldwide, they are actively looking for other operating partners in new areas as well. “I’m extremely pleased at the opportunity to partner with Steep Hill to bring safe cannabis and scientific integrity to emerging international markets,” says Shefsky. “I anticipate that before long, full legalization will be implemented throughout the European Union and our presence will enable growers, producers, processors, and retailers – to offer standardized tested cannabis for patients and consumers across the European Union, while also enabling us to create a platform to share scientific and technology developments throughout the global cannabis market.”steep-hill-labs-logo

In 2016, Steep Hill announced new licensing agreements to expand into Washington D.C. and Pennsylvania. In August of 2017, they expanded to Hawaii and several months later announced their expansion into Oregon. “It is an exciting time for us and our investors, as we pursue this first-mover advantage in anticipation of new global cannabis import-export markets,” says Jmîchaeĺe Keller, chief executive officer and chairman of the board of Steep Hill, Inc.

“In unregulated markets, we want to be on the ground supporting the legalization and regulatory process, helping regulators avoid making the mistakes that other jurisdictions have made in the past,” Keller says. “We believe that our role as the industry standard, allows us to leverage our world-class scientific knowledge and state of the art technology to help regulators provide confidence in the marketplace that the cannabis patients consume, is both safe and effective. We look forward to collaborating closely with Martin and his group to strive for this gold standard, across all international borders.”

Dr. Richard Kaufman
Soapbox

Replacing Opiates with Cannabis is Finally Becoming a Reality: Where do we go from Here?

By Dr. Richard Kaufman
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Dr. Richard Kaufman

Opiate abuse is a far-reaching international public health issue, impacting tens of thousands of people every year in the United States alone. As the epidemic continues to spread, the medical community is faced with the immense task of researching and developing safer, non-addictive treatment alternatives for patients of chronic pain and other ailments. The controversial and oft-debated notion of cannabis as an opiate alternative has become increasingly well-researched and gained considerable credibility in recent years. The new challenge lies in advancing the cannabis industry to the point of being a legitimate medicine that can be prescribed and administered by doctors.

Opioids are among the most commonly prescribed medical treatments for severe chronic pain, yet prescription opioid overdoses killed more than 165,000 Americans between 1999 and 2014 according to the Department of Health and Human Services. In fact, the health and social costs of opioids are estimated to be as much as $55 billion a year. As such, it has become more imperative than ever that mainstream medical practitioners take notice of the cannabis plant’s powerful healing properties and shift away from potentially harmful pharmaceutical medications.

Dr. Richard Kaufman
Dr. Richard Kaufman, co-founder and chief science officer of Nanosphere Health Sciences.

The evidence of cannabis’ safety and efficacy is well established. For instance, in a literature review of 38 studies evaluating medical cannabis’ efficacy for treating pain, 71 percent concluded that cannabinoids had empirically demonstrable and statistically significant pain-relieving effects. In addition, a 2015 meta-analysis of 79 studies found a 30 percent or greater reduction of pain with the use of cannabinoids compared to placebos. Further, an analysis of a decade of randomized, double-blind placebo-controlled clinical trials on cannabis for treating pain concluded that cannabis should be a first line treatment for patients with painful neuropathy and other serious and debilitating symptoms, who often do not respond to other available medications.

Not only is cannabis demonstrably safe and effective, but numerous studies also present compelling evidence that the prescription of opiates has dropped sharply in U.S. states and countries that have legalized medical cannabis. For example, a study in the Clinical Journal of Pain followed 176 chronic pain patients in Israel over seven months. Researchers found that 44 percent of participants stopped taking prescription opioids within seven months after starting medical cannabis. Patients cited the following reasons for using cannabis instead of pharmaceutical drugs: 65 percent reported less adverse side effects, 57 percent cited better symptom management and 34 percent found that cannabis had less withdrawal potential than their other medications.The evidence of cannabis’ safety and efficacy is well established.

The tide is quickly turning as many respected doctors are beginning to advocate for the tremendous medical potential of cannabis as a replacement for prescription pills. That said, if the cannabis industry is to help solve the crisis inflicted by modern pharmaceutical painkillers, we must develop next-generation scientifically formulated products and advocate to improve their accessibility.

Inhalation and oral methods of cannabis consumption have no reliable dosage as medicine, rendering them unfit for administration by health professionals. These mainstream consumption methods also have extremely low bioavailability and bioactivity. Bioavailability for ingested cannabis products is only 6 percent and for inhalation methods can be as low as 2 percent. Oral absorption of THC is slow and unpredictable, with peak blood concentration occurring 1–5 hours post dose. Similarly, inhalation methods can take up to two hours to have any effect. The next phase of the medical cannabis industry must focus on fixing problems that prevent cannabis from being a universally recognized health tool. Fortunately, scientists are making major advancements in cannabis delivery technologies, offering novel and innovative administration methods that have proven both effective and reliable.

With products like Evolve’s NanoSerum™ representing a promising solution to help reduce the morbidity and mortality associated with prescription opioid use and abuse, meaningful progress is already underway. It’s been a long and challenging road to arrive at this point, but our efforts are only just beginning. Achieving long-term change on a national and international scale will require professionals from all levels of the cannabis, science and medical communities to push for advanced product offerings that provide consistent, standardized dosing in healthier, smokeless modes of delivery.

Curaleafprocessing

Curaleaf Florida Earns SQF Certification

By Aaron G. Biros
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Curaleafprocessing

Last week, Curaleaf, a medical cannabis producer and processor in Miami, Florida, announced they have earned the Safe Quality Food (SQF) Level II certification. In the press release, they claim they are the first and only medical cannabis company in the state to achieve that certification.

That SQF certification is a program recognized by the Global Food Safety Initiative (GFSI), which is a global collaborative effort to get food companies practicing food safety management on the same high quality standards around the world. GFSI is a major international food quality and safety program where some of the largest food manufacturers and processors in the world participate.

Curaleafprocessing
The processing area at Curaleaf Florida headquarters

Curaleaf’s products include a line of low-THC and full strength medical cannabis products. They have dispensaries in Miami, Lake Worth, Fort Myers and St. Petersburg, as well as delivery of products from Jacksonville south to Key West.

According to Lindsay Jones, president of Curaleaf Florida, patients ask frequently about the level of safety of cannabis products. “Every day patients express interest and assurance of wanting to know that the foods and medicines they consume are safe and of the best quality available,” says Jones. “This SQF Level II certification that Curaleaf has earned is particularly important for patients and demonstrates that our medical marijuana processing expertise delivers superior quality products for patients in need across Florida.”

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.

Looking at SQF Level II certification and GFSI could be a step in the right direction for many cannabis infused product manufacturers, as they are some of the more recognized programs in the food industry.

Terpene_KAS2
From The Lab

The Other Side of Cannabis: Terpenes

By Dr. Zacariah Hildenbrand, Allegra Leghissa, Dr. Kevin A. Schug
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Terpene_KAS2

Have you ever wondered why all beers have that strong, characteristic smell? Or why you could tell the smell of cannabis apart from any other plant? The answer is simple – terpenes.

These 55,000 different molecules are responsible for a majority of the odors and fragrances around us, from a pine forest, to the air diffuser in your house 1–3. They all share the same precursor, isoprene, and because of that, they are all related and have similar molecular structures. Unfortunately, it is this uncanny similarity that makes their analysis so challenging; we still lack a complete list of which terpenes expected to be found in each given plant species 1,2.

Many different methods have been developed in an effort to provide a time-optimized and straightforward analysis. Gas chromatography (GC) is usually center stage due to the volatility of the terpenes. Therefore, there is significant concern with the type of GC detector used 2.

The flame ionization detector (FID) is a good quantitative detector for GC, but qualitatively it does not provide any information, except for retention time; the differentiation between terpene species is achieved solely by use of retention indices (RI), which are based on elution times from a particular GC stationary phase. The best part of the FID is its low cost, reliability, and relatively easy interface, which make it an effective tool for quality control (QC) but less so with respect to research and discovery 2.

The primary choice for a research setting is the mass spectrometer (MS) detector. It is more expensive and complicated than FID, but importantly, it provides both good quantitative capabilities, and it provides mass spectra for each species that elutes from the chromatograph. However, for terpene analysis, it may still not be the best detector choice. Since terpene class molecules share many structural and functional similarities, even their fragmentation and sub-sequential identification by MS may lead to inconsistent results, which need to be confirmed by use of RI. Still, MS is a better qualitative analysis tool than the FID, especially for distinguishing non-isobaric terpenes 2.

Recently, new technology based on vacuum ultraviolet spectroscopy (VUV) has been developed as a new GC detector. The VUV detector enables analysis of virtually all molecules; virtually all chemical compounds absorb light in the range in the 125-240 nm wavelength range probed by the detector, making it an essentially universal detector 4–11. Previously, spectroscopic absorption detectors for GC have lacked sufficient energy to measure absorption of most GC-amenable species. The VUV detector fills a niche, which is complementary to MS detection in terms of the qualitative information it provides.

Terpene_KAS2
Figure 1: A, Section of the chromatographic separation of a terpenes standard mix; B, highlight of the co-eluting terpenes, camphor and (-)-isopulegol; C, differences in the absorbance spectra of camphor and (-)-isopulegol.

With the VUV detector, each compound exhibits its own unique absorbance spectrum. Even isomers and isobars, which are prevalent in terpene mixtures and can be difficult to distinguish different species by their electron ionization mass spectra, can be well differentiated based on their VUV spectra 6,9,10.  Nevertheless, because analytes exhibit different spectra, it is not required to achieve a perfect chromatographic separation of the mixture components. Co-eluting peaks can be separated post-run through the use of library spectra and software inherent to the instrument 4,10. This ability is called “deconvolution”, and it is based on the fact that two co-eluting terpenes will give a peak with an absorbance spectrum equal to the sum of the two single absorbance spectra 4. Figure 1 shows the deconvolution process for two co-eluting terpenes, camphor and (-)-isopulegol. Due to their different absorbance spectra (Figure 1C), it is possible to fully separate the two peaks in post-run, obtaining sharp peaks for both analytes 6.

The deconvolution process has been shown to yield precise and accurate results. Thus, chromatographic resolution can be sacrificed in favor of spectroscopic resolution; this enables the development of methods with faster run times. With the ability to deconvolve unresolved peaks, a long temperature ramp to chromatographically separate all isomeric terpenes is not required 6. Additionally, the presence of coeluting components, which might normally go undetected with some GC detectors, can be easily judged based on comparison of the measured spectra with pure reference spectra contained in the VUV spectral library.

The other issue in terpenes analysis is the extraction process. Terpenes can be extracted with the use of solvents (e.g., methanol, ethanol, hexane, and cyclohexane, among others), but the process is usually time-consuming, costly and not so environmentally-friendly 2. The plant needs to be manually crushed and then aliquots of solvent are used to extract components from the plant, ideally at least 3 times and combined to achieve acceptable results. The problem is that some terpenes may respond better to a certain solvent, making their extraction easier and more optimized than for others 2. The choice of solvent can cause discrimination against the extraction some terpenes, which limits the comprehensiveness of analysis.

Headspace is another technique that can be used for the sample preparation of terpenes. Headspace sampling is based on heating the solid or liquid sample inside a sealed vial, and then analyzing the air above it after sufficient equilibration. In this way, only volatile analytes are extracted from the solid/liquid sample into the gas phase; this allows relatively interference-free sampling 12–14.

How do we know whether our extraction analysis methods are correct and comprehensive for a certain plant sample? Unfortunately, there is not a complete list of available molecules for each plant species, and even if two specimens may smell really similar to our nose, their terpenes profiles may be notably different. When working with a new plant material, it is difficult to predict the extraction efficiency for the vast array of terpenes that may be present. We can only perform it with different extraction and detection methods, and compare the results.

The route for a comprehensive and fast analysis of terpenes is therefore still long; however, their intoxicating aromas and inherent medicinal value has provided a growing impetus for researchers around the world. Considering the evolving importance of Cannabis and the growing body of evidence on the synergistic effects between terpenes and cannabinoids, it is likely that newly improved extraction and analysis methods will be developed, paving the way for a more complete list of terpene species that can be found in different cultivars. The use of new analytical technologies, such as the VUV detector for GC, should aid considerably in this endeavor.


References:

[1]          Breitmaier E., Terpenes: Flavors, Fragrances, Pharmaca, Pheromones. John Wiley & Sons 2006.

[2]          Leghissa A., Hildenbrand Z. L., Schug K. A., A Review of Methods for the Chemical Characterization of Cannabis Natural Products. J. Sep. Sci.2018, 41, 398–415 .

[3]          Benvenuto E., Misra B. B., Stehle F., Andre C. M., Hausman J.-F., Guerriero G., Cannabis sativa: The Plant of the Thousand and One Molecules. Front. Plant Sci2016, 719, DOI: 10.3389/fpls.2016.00019.

[4]          Schug K. A., Sawicki I., Carlton D. D., Fan H.,Mcnair H. M.,Nimmo J. P., Kroll P.,Smuts J.,Walsh P., Harrison D., Vacuum Ultraviolet Detector for Gas Chromatography. Anal. Chem.2014, 86, 8329–8335 .

[5]          Fan H.,Smuts J., Walsh P.,Harrison D., Schug K. A., Gas chromatography-vacuum ultraviolet spectroscopy for multiclass pesticide identification. J. Chromatogr. A2015, DOI: 10.1016/j.chroma.2015.02.035.

[6]          Qiu C.,Smuts J., Schug K. A., Analysis of terpenes and turpentines using gas chromatography with vacuum ultraviolet detection. J. Sep. Sci.2017, 40, 869–877 .

[7]          Leghissa A., Smuts J., Qiu C., Hildenbrand Z. L., Schug K. A., Detection of cannabinoids and cannabinoid metabolites using gas chromatography-vacuum ultraviolet spectroscopy. Sep. Sci. Plus2018, 1.

[8]          Bai L.,Smuts J., Walsh P., Fan H., Hildenbrand Z., Wong D., Wetz D., Schug K. A., Permanent gas analysis using gas chromatography with vacuum ultraviolet detection. J. Chromatogr. A2015,1388, 244–250 .

[9]          Skultety L., Frycak P., Qiu C.,Smuts J., Shear-Laude L., Lemr K., Mao J. X., Kroll P., Schug K. A., Szewczak A., Vaught C., Lurie I., Havlicek V., Resolution of isomeric new designer stimulants using gas chromatography – Vacuum ultraviolet spectroscopy and theoretical computations. Anal. Chim. Acta2017, 971, 55–67 .

[10]       Bai L., Smuts J., Walsh P., Qiu C., McNair H. M., Schug K. ., Pseudo-absolute quantitative analysis using gas chromatography–vacuum ultraviolet spectroscopy–a tutorial. Anal. Chim. Acta2017, 953, 10–22 .

[11]       Schenk J., Nagy G., Pohl N. L. B., Leghissa A., Smuts J., Schug K. A., Identification and deconvolution of carbohydrates with gas chromatography-vacuum ultraviolet spectroscopy. J. Chromatogr. A2017, 1513, 210–221 .

[12]       Van Opstaele F., De Causmaecker B., Aerts G., De Cooman L., Characterization of novel varietal floral hop aromas by headspace solid phase microextraction and gas chromatography-mass spectrometry/olfactometry. J. Agric. Food Chem.2012, 60, 12270−12281 .

[13]       Hamm S., Bleton J., Connan J., Tchapla A., A chemical investigation by headspace SPME and GC-MS of volatile and semi-volatile terpenes in various olibanum samples. Phytochemistry2005,66, 1499–1514 .

[14]       Aberl A., Coelhan M., Determination of volatile compounds in different hop Varieties by headspace-trap GC/MS-in comparison with conventional hop essential oil analysis. J. Agric. Food Chem.2012, 60, 2785−2792 .

HACCP

Hazard Analysis and Critical Control Points (HACCP) for the Cannabis Industry: Part 2

By Kathy Knutson, Ph.D.
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HACCP

HACCP is a food safety program developed in the 1960s for the food manufacturing industry, mandated for meat, seafood and juice and adopted by foodservice for the safe serving of meals at restaurants. With state requirements for the safe production of cannabis-infused products, namely edibles, facilities may be inspected against HACCP principles. The cannabis industry and state inspectors recognize the need for safe edible manufacture. Lessons can be learned from the food industry, which has advanced beyond HACCP plans to food safety plans, starting with procurement and including the shipment of finished product to customers.

In my work with the food industry, I write HACCP and food safety plans and deliver training on food safety. In Part 1 of this series, I wrote about the identification of hazards, which is the first step in HACCP plan development. Before we continue with the next HACCP step, I will discuss Good Manufacturing Practices (GMPs). GMPs are the foundation on which HACCP is built. In other words, without GMPs in place, the facility will not have a successful HACCP program. GMPs are required in the food, dietary supplement and pharmaceutical industries, all under the enforcement of the federal Food and Drug Administration (FDA). Without federal regulation for cannabis edible manufacture, there may not be state-mandated requirements for GMPs. Let me warn you that any food safety program will not succeed without proper control of GMPs.HACCP

GMPs cover all of your programs and procedures to support food safety without having a direct, instant control. For example, when brownies are baked as edibles, food safety is controlled by the time and temperature of baking. A written recipe and baking procedure are followed for the edible. The time and temperature can be recorded to provide documentation of proper baking. In the food industry, this is called a process preventative control, which is critical to food safety and is part of a HACCP plan. Failure of proper time and temperature of baking not only leads to an unacceptable product in terms of quality, but results in an unsafe product that should not be sold.

Back to GMPs. Now think of everything that was done up to the steps of mixing and baking. Let’s start with personnel. Facilities for edibles have hiring practices. Once an employee is hired, the employee is trained, and training will include food safety procedures. When working at the job after training, the employee measuring ingredients will demonstrate proper grooming and hand washing. Clean aprons, hairnets, beard nets and gloves will be provided by the facility and worn by the employee. The same goes for the employee that bakes and the employee that packages the edible. One category of GMPs is Personnel.

Edibles facilities are not foodservice; they are manufacturing. A second GMP category is cleaning and sanitizing. Food safety is controlled through proper cleaning and sanitizing of food contact surfaces (FCS). The edible facility will have in place the frequency and methods for cleaning all parts of the facility- outside, offices, restrooms, break room and others. GMPs cover the general cleaning procedures and procedures for cleaning receiving, storage; what we would consider processing to include weighing, process steps and packaging; finished product storage and shipping. Management of the facility decides the methods and frequency of cleaning and sanitizing with greater care given to processing. Without proper cleaning and sanitizing, a facility cannot achieve food safety.

I could go on and on about GMPs. Other GMPs include water safety, integrity of the buildings, pest control program, procurement, sewage disposal and waste disposal. Let’s transition back to HACCP. In Part 1 of this series, I explained identification of hazards. Hazards are one of three types: biological, chemical and physical.

At this point, I am not surprised if you are overwhelmed. After reading Part 1 of this series, did you form a food safety team? At each edibles facility, there should be at least one employee who is trained externally in food safety to the standard that foodservice meets. Classes are offered locally and frequently. When the facility is ready, the next step of training is a HACCP workshop for the food industry, not foodservice. Edibles facilities are not foodservice; they are manufacturing. Many colleges and associations provide HACCP training. Finally, at the least, one employee should attend a workshop for Preventive Controls Qualified Individual.

To institute proper GMPs, go to ConnectFood.com for a GMP checklist. Did you draw up a flow diagram after reading Part 1? With a flow diagram that starts at Receiving and ends at Shipping, the software at ConnectFood.com takes you through the writing steps of a HACCP or food safety plan. There are many resources out there for GMPs, so it can get overwhelming. ConnectFood.com is my favorite resource.

The next step in HACCP development after identification of hazards is to identify the exact step where the hazard will be controlled. Strictly speaking, HACCP only covers process preventive controls, which typically start with a weigh step and end with a packaging step. A facility may also have a step where temperature must be controlled for food safety, e.g. cooling. In HACCP, there are commonly two process preventive controls:

  • Biological hazard of Salmonella and Escherichia coli: the heat step
  • Physical hazard of metal: metal detector

Strictly speaking, HACCP does not include cleaning, sanitizing and supplier approval for procurement of ingredients and packaging. I hope you see that HACCP is not enough. There have been hundreds of recalls and outbreaks due to problems in non-processing steps. The FDA requires food manufactures to go beyond HACCP and follow a written food safety plan, which includes hazards controlled at these steps:

  • Biological hazard of Listeria monocytogenes: cleaning and sanitizing of the processing environment and equipment
  • Physical hazards coming in with ingredients: supplier approval
  • Physical hazard of glass and hard plastic: Here I am thinking of glass breaking or plastic pieces flying off buckets. This is an internal hazard and is controlled by following written procedures. The written document is a Standard Operating Procedure (SOP).
  • Chemical hazard of pesticides: supplier approval
  • Chemical hazard of mycotoxins: supplier approval
  • Chemical hazard of allergens: supplier approval, label check at Receiving and product labeling step

Does a cannabis edible facility honestly not care or not control for pesticides in ingredients because this is not part of HACCP? No. There are two ways for procurement of ingredients in which pesticides are controlled. Either the cannabis cultivation is controlled as part of the samebusiness or the facility works with a supplier to confirm the ingredient meets pesticide tolerances. Strictly speaking, this control is not part of HACCP. For this and many other reasons, HACCP is a good place to start the control of food safety when built on a solid foundation of GMPs. In the same way the food industry is required to go beyond HACCP with a food safety plan, the cannabis industry must go beyond HACCP.

My thoughts will be shared in a webinar on May 2nd hosted by CIJ and NEHA. I encourage you to listen in to continue this discussion.Please comment on this blog post below. I love feedback!