Tag Archives: failure

July 3, 2023

Building An Integrated Pest Management Plan – Part 6

By Phil Gibson

This is the sixth and final in the series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. To see Part One, an overview of the plan and pest identification, click here. For Part Two, on pest monitoring and record keeping, click here. For Part Three, on preventative measures, click here. For Part Four, control methods, click here. For Part Five, pest control action thresholds, click here.

This is Part 6: Emergency Response

When all prevention efforts have failed and your escalation procedures must be implemented, your emergency response document takes the stage.

Figure 1: We never want to see these at our door

It sounds obvious, but your emergency response document is your team’s guide to structure your response to an emergency. This begins with the simple definition of what is an emergency for your business. Emergencies can be to your personnel (personal injury) or your infrastructure (broken pipes/floods, power failure), and finally, a pest or pathogen outbreak that threatens the entire facility (insects/fungus, molds). Be sure to get the advice of your local service providers on the important things to put in to your response plan. This article is far from an exhaustive list, but it can get you started quickly with the basics for example purposes.

Personal Injury

Personal injuries are the events where you would call your local fire or police resources after stabilizing trauma events. Examples are chemical exposure, cuts, lacerations or broken bones from falls or crush events, burns, electric shock or earthquake or weather events. Injury response is to assess, call for medical assistance if appropriate, provide first aid and stabilize the injured, move to safety if possible, treat the injury and after the event is over and still fresh in everyone’s mind, consider what can be done to avoid the repeat of this or similar events in the future. Work those changes into your standard operating procedures.

Emergency Response to Facility Events

Figure 2: Cultivation IPM Prevention with Beneficial Insects

Whether the event is broken pipes or flooding, power failure or interruption, fire, HVAC failure or weather event, emergencies come in all sizes possible. It is likely that you built up a plan for emergency response as part of your city permitting process. Be sure to use those experts to refine your plan to include your operations.

Broken pipes start with the basics of turning off the source feeds and fixing the plumbing. If the water is actually rich fertilizer nutrients, cleaning and disinfectant is necessary as part of the drying and mop up process.

Environmental damage from fire, HVAC or weather event, lead to immediate treatment to try and save the current crops. This would include manual watering/misting, portable heater/cooler/CO2 burners. Verifying that backup power supplies turned on as planned. Are emergency fixes sufficient to power or run the systems necessary for plant life until power is returned?

Cultivation Events

This entire paper has been about pest management, so emergency is expected to mean a pest or pathogen outbreak. We defined the escalated response actions up to the point of direct action and chemical interventions in chapters four and five. Your emergency response plan takes those actions to a site wide effort. Identify the pest and location/s that are causing the crisis, isolate the infested plants, remove the infected materials, clean, disinfect, and purify the contacted surfaces. Follow your plan and contact your emergency leaders.

Emergency Response Team

Your emergency response document identifies each of your team leaders and executives that are to be contacted in the event of an emergency. These leaders should be identified in the document with contact details and methods/on-call schedules for days and times of responsibility (after normal hours and holidays included). Someone is always on-call. The personal injury, facility and cultivation lead responsible should be identified and aware that they are the assigned resource and to treat emergencies as a priority.

In Conclusion

We have covered an example integrated pest management philosophy from prevention through observation to limiting expansion to treatment and review. This continuous monitoring and learning process is a living document of standard operating procedures for any facility.

The attention of your team, their scouting observations, and attention to detail give you an opportunity to address and restrict any pest outbreak before it destroys your crop. Teach your operators well and reward them for their attention to your plan.

Clean and sterilize your facilities regularly. Preventing the emergence of pests will pay for the investment in a multitude of ways in both savings and profits. Plan your response thresholds and use traps to monitor your escalating protections. Target your treatments and remediations to match the threats to your harvests. As a last resort, apply approved chemical treatments judiciously to minimize the impact on non-target organisms.

Evaluate the effectiveness of your plan on an annual basis. Put your improvements to work for you to minimize your pest footprint and to increase your profits in every harvest.

For a copy of the complete Integrated Pest Management guide, download the document here.

April 3, 2020

Soapbox

(L)Earning from Failure

By Dr. Markus Roggen, Soheil Nasseri

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The spectacular rise and crash of the Canadian cannabis stock market has been painful to watch, let alone to experience as an industry insider. The hype around the market has vanished and many investors are left disappointed. Large sustainable gains simply haven’t materialized as promised. The producers are clearly suffering. They have consistently been shedding value as they’ve been posting losses every quarter. Stock prices have plummeted along with consumer confidence. Attempts to reduce the cash bleeds through mergers, acquisitions, layoffs, restructures, fund raises, among others, have not resulted in any significant recovery. In short, the current model of a cannabis industry has failed.

Dr. Markus Roggen, Founder of Complex Biotech Discovery Ventures (CBDV)

How could it have been different? What should the industry have done differently? What makes the difference between failure and success? A recent article published in Nature (Volume 575) by Yin et al. titled “Quantifying the Dynamics of Failure Across Science, Startups and Security” analyzes the underlying principles of success. The article studies success rates of many groups after numerous attempts across three domains. One of the domains being analyzed are startup companies and their success in raising funds through many attempts at investment acquisition. The authors point out that the most important factor that determines success is not relentless trying but is actually learning after each attempt. Learning allows successful groups to accelerate their failures, making minute adjustments to their strategy with every attempt. Learning behavior is also seen early in the journey. This means that groups will show higher chances of success early on, if they learn from their mistakes.

If you want to succeed, you need to analyze the current state, test the future state, evaluate performance difference and implement the improved state.

This also needs to happen in the cannabis industry. Producers have been utilizing inefficient legacy systems for production. They have shackled themselves to these inefficient methods by becoming GMP-certified too early. Such certifications prevent them from experimenting with different designs that would enhance their process efficiency and product development. This inflexibility prevents them from improving. This means they are setting themselves up for ultimate failure. GMP is not generally wrong, as it ensures product safety and consistency. Although, at this early stage in the cannabis industry, we just don’t yet have the right processes to enshrine.

How can cannabis producers implement the above-mentioned research findings and learn from their current situation? In an ever-changing business environment, it is companies that are nimble, innovative and fast enough to continually refine themselves that end up succeeding. This agility allows them to match their products with the needs of their consumers and market dynamics. booking.com, a travel metasearch engine, is the prime example of this ethos because they carry out thousands of experiments per year. They have embraced failure through rapid experimentation of different offerings to gauge user feedback. Experimentation has allowed booking.com to learn faster than the competition and build a stronger business.

Soheil Nasseri, Business Associate at Complex Biotech Discovery Ventures (CBDV)

At CBDV, we put the need for iterative experimentation, failure and improvements to achieve breakthroughs at the core of our company. We pursue data to guide our decisions, not letting fear of momentary failure detract us from ultimate success. We continuously explore multiple facets of complex problems to come up with creative solutions.

A good example of how failure and rapid innovation guided us to success is our work on decarboxylation. We were confronted by the problem that the decarboxylation step of cannabis oil was inconsistent and unpredictable. Trying different reaction conditions did not yield a clear picture. We realized that the most important obstacle for improvements was the slow analysis by the HPLC. Therefore, we turned our attention to developing a fast analysis platform for decarboxylation. We found this in a desktop mid-IR instrument. With this instrument and our algorithm, we now could instantaneously track decarboxylation. We now hit another roadblock, a significant rate difference in decarboxylation between THCA and CBDA. We needed to understand the theoretical foundation of this effect to effectively optimize this reaction. So, we moved to tackle the problem from a different angle and employed computational chemistry to identify the origin of the rate difference. Understanding the steric effect on rate helped us focus on rapid, iterative experimentation. Now, with everything in place, we can control the decarboxylation at unrivaled speeds and to the highest precision.

If producers want to regain the trust of the market, they must embrace their failures and begin to learn. They should decrease their reliance on inefficient legacy production methods and experiment with new ones to find what is right for them. Experimentation brings new ways of production, innovative products and happier customers, which will result in higher profits. Producers should strive to implement experimentation into their corporate cultures. This can be done in collaboration with research companies like CBDV or through development of inhouse ‘centers of excellence.’

September 4, 2019

From CannTrust To Canopy: Is There A Connection To Current Cannabis Scandals?

By Marguerite Arnold

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As Europe swooned under record-breaking heat this summer, the cannabis industry also found itself in a rather existential hot seat.

The complete meltdown at CannTrust has yet to reach a conclusion. Yes, a few jobs have been lost. However, a greater question is in the room as criminal investigatory and financial regulatory agencies on both sides of the US-Canada border (plus in Europe) are getting involved.

As events have shown, there is a great, big, green elephant in the room that is now commanding attention. Beyond CannTrust, how widespread were these problematic practices? And who so far has watched, participated, if not profited, and so far, said nothing?

Who, What, Where?

The first name in the room? Canopy Growth.

Why the immediate association? Bruce Linton, according to news reports, was fired as CEO by his board the same day, July 3, 2019, that CannTrust received its first cease and desist notice from Health Canada.

Further, there is a remarkable similarity in not only problematic practices, but timing between the two companies. This may also indicate that Canopy’s board believed that Linton’s behaviour was uncomfortably close to executive misdeeds at CannTrust. Not to mention, this was not the first scandal that Linton had been anywhere close to around acquisition time. See the Mettrum pesticide debacle, that also broke right around the time Canopy purchased the company in late 2016 as well as the purchase of MedCann GmbH in Germany.

Reorg also appears to be underway in Europe as well. As of August, Paul Steckler has been brought in as “Managing Director Europe” and is now based in Frankfurt. Given the company’s history of “co-ceo’ing” Linton out the door, is more change to come?

What Went Down At Canopy?

Last year, Canopy announced its listing on the NYSE in May. To put this in context, this was two months after the first German cultivation bid went down to legal challenge. By August 15, 2018 with a new bid in the offing, the company had closed the second of its multi-billion dollar investments from Constellation.

Bruce Linton, former CEO of Canopy Growth
Photo: Youtube, TSX

Yet by late October, after Bruce Linton skipped a public markets conference in Frankfurt where many of the leading Canadian cannabis company execs showed up to lobby Jens Spahn (the health minister of Germany) about the bid if not matters relating to the Deutsche Börse, there were two ugly rumours afoot.

Video showing dead plants at Canopy’s BC facility surfaced. Worse, according to the chatter online at least, this was the second “crop failure” at the facility in British Columbia. Even more apparently damning? This all occurred during the same time period that the second round of lawsuits against the reconstituted German cultivation bid surfaced.

Canopy in turn issued a statement that this destruction was not caused by company incompetence but rather a delay in licensing procedures from Health Canada. Despite lingering questions of course, about why a company would even start cultivation in an unlicensed space, not once but apparently twice. And further, what was the real impact of the destruction on the company’s bottom line?

Seen within the context of other events, it certainly poses an interesting question, particularly, in hindsight.

Canopy, which made the finals in the first German cultivation bid, was dropped in the second round – and further, apparently right as the news hit about the BC facility. Further, no matter the real reason behind the same, Canopy clearly had an issue with accounting for crops right as Canadian recreational reform was coming online and right as the second German cultivation bid was delayed by further legal action last fall.

Has Nobody Seen This Coming?

In this case, the answer is that many people have seen the writing on the wall for some time. At least in Germany, the response in general has been caution. To put this in true international perspective, these events occurred against a backdrop of the first increase in product over the border with Holland via a first-of-its kind agreement between the German health ministry and Dutch authorities. Followed just before the CannTrust scandal hit, with the announcement that the amount would be raised a second time.

German health authorities, at least, seem doubtful that Canadian companies can provide enough regulated product. Even by import. The Deutsche Börse has put the entire public Canadian and American cannabis sector under special watch since last summer.

Common Territories

By the turn of 2019, Canopy had announced its expansion into the UK (after entering the Danish market itself early last year) and New York state.

And of course by April, the company unveiled plans to buy Acreage in the U.S.

Yet less than two weeks later, Canopy announced not new cultivation facilities in Europe, but plans to buy Bionorica, the established German manufacturer of dronabinol – the widely despised (at least by those who have only this option) synthetic that is in fact, prescribed to two thirds of Germany’s roughly 50,000 cannabis patients.

By August 2019, right after the Canopy Acreage deal was approved by shareholders, Canopy announced it had lost just over $1 billion in the last three months.

Or, to put this in perspective, 20% of the total investment from Constellation about one year ago.

What Happened At CannTrust And How Do Events Line Up?

The current scandal is not the first at CannTrust either. In November 2017, CannTrust was warned by Health Canada for changing its process for creating cannabis oil without submitting the required paperwork. By March of last year however, the company was able to successfully list on the Toronto stock exchange.

Peter Aceto arrived at CannTrust as the new CEO on October 1 last year along with new board member John Kaken at the end of the month. Several days later the company also announced that it too, like other major cannabis companies including Canopy, was talking to “beverage companies.” It was around this time that illegal growing at CannTrust apparently commenced. Six weeks later, the company announces its intent to also list on the NYSE. Two days later, both the CEO and chair of the board were notified of the grow and chose not to stop it.

Apparently, their decision was even unchanged after the video and resulting online outrage about the same over the destroyed crops at the Canopy facility in BC surfaced online.

On May 10, just over a week after the Bioronica purchase in Germany, the first inklings of a scandal began to hit CannTrust in Canada. A whisteblower inside the company quit after sending a mass email to all employees about his concerns. Four days later, the company announced the successful completion of their next round of financing, and further that they had raised 25.5 million more than they hoped.

Six weeks later, on June 14, Health Canada received its warning about discrepancies at CannTrust. The question is, why did it take so long?

Where Does This Get Interesting?

The strange thing about the comparisons between CannTrust and Canopy, beyond similarities of specific events and failings, is of course their timing. That also seems to have been apparent at least to board members at Canopy – if not a cause for alarm amongst shareholders themselves. One week after Health Canada received its complaint about CannTrust, shareholders voted to approve the Canopy-Acreage merger, on June 21.

Yet eight days after that, as Health Canada issued an order to cease distribution to CannTrust, the Canopy board fired Bruce Linton.

One week after that, the Danish recipient of CannTrust’s product, also announced that they were halting distribution in Europe. By the end of August, Danish authorities were raising alarms about yet another problem – namely that they do not trust CannTrust’s assurances about delivery of pesticide-free product.

Is this coincidence or something else?

If like Danish authorities did in late August 2019, calling for a systematic overhaul of their own budding cannabis ecosystem (where both Canadian companies operate), the patterns and similarities here may prove more than that. Sit tight for at least a fall of more questions, if not investigations.

Beyond one giant cannabis conspiracy theory, in other words, the problems, behaviour and response of top executives at some of the largest companies in the business appear to be generating widespread calls – from not only regulators, but from whistle blowers and management from within the industry itself – for some serious, regulatory and even internal company overhauls. Internationally.

And further on a fairly existential basis.

EDITOR’S NOTE: CIJ reached out to Canopy Growth’s European HQ for comment by email. None was returned.

Correction: This article has been updated to show that the Danish recipient of Canntrust’s product announced they were halting distribution one week after Bruce Linton’s firing, not one day.

June 13, 2019

Clearing Up the Haze Surrounding Cannabis Product Liability Risks

By Susan Preston, T.J. Frost

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When a thriving cultivator purchased additional cannabis from a wholesale grower to meet the 5,000 pounds he was short, he was left holding the bag. A customer complained of a strong sulfur taste, and soon it was discovered that the wholesaler had applied the wrong pesticide concentration, rendering the cannabis unusable. The cultivator had to pull contaminated cannabis product from the shelves, a move that cost the company $3.5 million.

This story is not unique. When running short on product, cannabis businesses will often turn to other suppliers and partners to help them fulfill their orders. Unfortunately, improper vetting and a lack of understanding and compliance with state regulations and other requirements may lead to a loss of product integrity and costly product liabilities. Product liability can include more than just the cannabis itself, such as the equipment – vape cartridges, batteries, and lighters. This can quickly inflate the risk and, of course, the cost of a product liability claim. It is possible to transfer some of these cannabis risks to product liability insurance.

Top Three Product Liability Exposures Facing Cannabis Cultivators and Distributors

Three key areas of product liability exposure face cannabis business owners. It’s important to understand how each will affect your business.

Product contamination.When cannabis is sold in an edible form, business owners could face claims of food poisoning or illness. If the product is smoked, there are exposures to contamination, product mislabeling or misrepresentation, and possible health hazard claims related to long-term exposure to potential contaminants.
First party claims. Claims made in the event of an accident, injury or loss, whether caused by the business owner or someone else, will create another set of exposures, including manufacturing defects, failure to warn users on potential product usage hazards, improper labeling, or any product-related defect such as mold or odor.
Third party claims. Cannabis business owners could be liable for claims stemming from the use of their cannabis product that result in a DUI, property damage, loss of wages, medical expenses and bodily injury.

It is possible to transfer some of these cannabis risks to product liability insurance. While there are multiple lines of product liability insurance, you’ll want to make sure you choose one designed specifically for the cannabis industry. These policies may provide coverage for the following exposures:

Product contamination
Bodily injury damages
Fines and penalties for non-compliance with state regulation
Bodily or property injury caused to others by product misuse, or by a third party
Manufacturing or product-related defects

While product liability insurance covers a number of cannabis risks, it doesn’t cover them all. Cannabis operations require a variety of coverage – property, crime, general liability, worker’s compensationand crop insurance. Insurance carriers will differ in definitions, policy exclusions and coverage language for each policy.

Because designated cannabis product liability and business operations coverage is fairly new and the marketplace features a wide range of options, make sure to work with a broker who understands the fine print of your policies, and your unique needs. The right broker can provide advice and loss control to help you reduce product liability exposures, make product and risk management recommendations that best mitigate your exposures to prevent loss, and ensure the proper coverage to address potential claims.

April 30, 2019

Soapbox

Insurers Must Play Catch-Up to Meet Cannabis Industry Needs

By Matt Engle

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As the cannabis industry continues to grow, demand for insurance products is also increasing. While insurers have been cautious about entering a market that carries the stigma of a Schedule I drug, the cannabis industry is clamoring for insurance coverage options tailored to meet the needs of key players— distributors, growers, processors and retail dispensaries.

The escalating need for insurance products tailored to these cannabis business sectors has not expedited an increase in coverage offerings. The slow entry of insurance carriers into the cannabis sector can be tied to a reluctance to insure an industry with emerging and often unknown risks. This will begin to change as more information becomes available on what loss ratio trends look like in the cannabis industry.

For now, there is a wait-and-see stance held by insurance carriers. This presents a major concern for cannabis-related businesses that are subject to risk at every stage of the supply chain, with particular exposure for theft, general liability, crop loss, and product liability.some degree of crime and theft coverage is needed for these enterprises to help manage the risks associated with a cash-based business

Theft

For cannabis companies, the use of paper currency is a huge part of their risk exposure. Federal banking regulations have limited these businesses to dealing mostly in cash, which makes them a prime target for crime and fraud. Currently, only one carrier will insure coverage for cash and theft risk, and the policy is limited to $1 million for most risks. This is inadequate coverage since many operators have more than that amount on-site.

In states with legislation legalizing cannabis, the cannabis sector will be able to move away from operating in cash if Congress passes the Secure and Fair Enforcement (SAFE) Banking Act, which would protect financial institutions from liability for federal prosecution that could arise from servicing cannabis-related businesses authorized under state law. Until banking regulations give the cannabis industry the ability to operate as legitimate businesses with the stability and safety that would deter criminal activity, some degree of crime and theft coverage is needed for these enterprises to help manage the risks associated with a cash-based business.

General Liability

Cannabis-related businesses need the same general liability coverage as other businesses to protect their premises and operations from lawsuits involving public contact. However, standard general liability policies—which exclude Schedule I substances from coverage—were not created with cannabis businesses in mind. It is still difficult for these businesses to obtain adequate general liability as a result of the legal uncertainty associated with the industry.

Product Liability

Product liability exposures for cannabis businesses encompass a wide range of areas, including edibles, vaporizers, pesticides, mold/fungus, misrepresentation, label claims, breach of warranty, deceptive practices, and failure to warn.

A major area of exposure concerns accidents resulting from impairment. A cannabis cultivator, processor, distributor, or retailer potentially may be considered liable in the event a product defect results in injury after reasonable use or when label defects fail to warn users that a product may have psychoactive effects.

Another area of risk exposure involves products that contain THC, the psychoactive compound that gives cannabis users a high. As the number of THC-containing products such as edibles and tinctures increases, so does the potential exposure to product liability claims for manufacturers and retailers.

The California Cannabis Track-and-Trace (CCTT) system also has implications for product liability. The CCTT is a statewide system used to record the inventory and movement of cannabis and related products through the commercial supply chain. All state cannabis licensees, including those with licenses for cultivation, manufacturing, retail, distribution, testing labs and microbusinesses, are required to use this system. The product liability impact lies in its capacity to determine responsibility along the supply chain from seed to sale.

For example, if a plastic vape pen explodes, a product liability lawsuit could have repercussions for many touch points across the supply chain beyond the manufacturer of the pen–all of which can be identified through CCTT. Entities that touch cannabis products such as soil suppliers or delivery persons also have product liability risk exposure. Personal injury attorneys can find incident-related parties easily and determine liability. This makes it particularly important to add these parties to the policy as additional insureds to help reduce claims exposure.

Crop Loss

Another area of concern for risk exposure is crop loss. Crop insurance is generally hard to obtain due to the significantly different nature of cannabis crops compared to traditional crops like corn or soybeans.

Fires in Sonoma County devastated cannabis crops in Northern California back in 2017.

An indoor crop insurance policy covers cultivators when there is loss resulting from threats such as fire, theft, and sprinkler leakage. However, crop insurance policies generally do not cover losses resulting from mold, rot, disease, changes in climate, or fertilization issues. Many growers forgo this coverage and instead elect to absorb losses and regrow their crops.

Outdoor crop coverage is generally unavailable, or the cost is prohibitive. Any potential for writing outdoor crop insurance for the cannabis industry essentially disappeared as a result of the recent wildfires in California. These devastating fires highlighted the pressing need for property damage and business interruption coverage for growers and dispensaries and other downstream businesses whose supply was disrupted. This lack of available outdoor crop insurance is one of the more notable gaps in available cannabis business insurance coverage.

While cannabis businesses operating in states that have legalized medical and/or recreational cannabis use have challenges getting adequate insurance coverage, there is some good news on the insurance front for those in California. Last year, California’s insurance commissioner announced approval for carriers to offer insurance coverage specifically to cannabis businesses. The state also approved a cannabis business-owners policy (CannaBOP) program that provides a package policy containing both property and liability coverage for qualifying dispensaries, distributors, manufacturers, processors and storage facilities. Colorado is on the verge of being the second state to approve its version of a CannaBOP program.

While more insurance carriers are beginning to write cannabis coverage, the limited insurance options and policies with restrictive plans currently offered todaydo not meet the needs of the cannabis industry. Insurers must catch up to the coverage requirements of this sector by offering more options tailored to growers, retail dispensaries, processors and distributors with better terms and better pricing.

August 7, 2018

From The Lab

Quality Plans for Lab Services: Managing Risks as a Grower, Processor or Dispensary, Part 4

By Dr. Edward F. Askew

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In the last three articles, I discussed the laboratory’s responses or defenses used to reply to your questions about laboratory results that place stress on the success of your business. The Quality Control (QC) results can cause this stress if they are not run correctly to answer the following questions:

Are the laboratory results really true?
Can the laboratory accurately analyze sample products like my sample?
Can the laboratory reproduce the sample results for my type of sample?

Now let’s discuss the most important QC test that will protect your crop and business. That QC sample is the Matrix Sample. In the last article in this series, you were introduced to many QC samples. The Matrix Sample and Duplicate were some of them. Take a look back at Part 3 to familiarize yourself with the definitions.

The key factors of these QC sample types are:

Your sample is used to determine if the analysis used by the laboratory can extract the analyte that is being reported back to you. This is performed by the following steps:
1. Your sample is analyzed by the laboratory as received.
2. Then a sub-sample of your sample is spiked with a known concentration of the analyte you are looking for (e.g. pesticides, bacteria, organic chemicals, etc.).
3. The difference between the sample with and without a spike indicates whether the laboratory can even find the analyte of concern and whether the percent recovery is acceptable.
4. Examples of failures are from my experiences:
  1. Laboratory 1 spiked a known amount of a pesticide into a wastewater matrix. (e.g. Silver into final treatment process water). The laboratory failed to recover any of the spiked silver. Therefore the laboratory results for these types of sample were not reporting any silver, but silver may be present. This is where laboratory results would be false negatives and the laboratory method may not work on the matrix (your sample) correctly. .
  2. Laboratory 2 ran an analysis for a toxic compound (e.g. Cyanide in final waste treatment discharge). A known amount of cyanide was spiked into a matrix sample and 4 times the actual concentration of that cyanide spike was recovered. This is where laboratory results would be called false positives and the laboratory method may not work on the matrix (your sample) correctly.
Can the laboratory reproduce the results they reported to you?
1. The laboratory needs to repeat the matrix spike analysis to provide duplicate results. Then a comparison of the results from the first matrix spike with its duplicate results will show if the laboratory can duplicate their test on your sample.
  1. If the original matrix spike result and the duplicate show good agreement (e.g. 20% relative percent difference or lower). Then you can be relatively sure that the result you obtained from the laboratory is true.
  2. But, if the original matrix spike result and the duplicate do not show good agreement (e.g. greater than 20% relative percent difference). Then you can be sure that the result you obtained from the laboratory is not true and you should question the laboratory’s competence.

Now, the question is why a laboratory would not perform these matrix spike and duplicate QC samples? Well, the following may apply:

These matrix samples take too much time.
These matrix samples add a cost that the laboratory cannot recover.
These matrix samples are too difficult for the laboratory staff to perform.
Most importantly: Matrix samples show the laboratory cannot perform the analyses correctly on the matrix.

So, what types of cannabis matrices are out there? Some examples include bud, leaf, oils, extracts and edibles. Those are some of the matrices and each one has their own testing requirements. So, what should you require from your laboratory?

The laboratory must use your sample for both a matrix spike and a duplicate QC sample.
The percent recovery of both the matrix spike and the duplicate will be between 80% and 120%. If either of the QC samples fail, then you should be notified immediately and the samples reanalyzed.
If the relative percent difference between the matrix spike and the duplicate will be 20% or less. If the QC samples fail, then you should be notified immediately and the samples should be reanalyzed.

The impact of questionable laboratory results on your business with failing or absent matrix spike and the duplicate QC samples can be prevented. It is paramount that you hold the laboratory responsible to produce results that are representative of your sample matrix and that are true.

The next article will focus on how your business will develop a quality plan for your laboratory service provider with a specific focus on the California Code Of Regulations, Title 16, Division 42. Bureau Of Cannabis Control requirements.