Tag Archives: packaged

Fungal Monitoring: An Upstream Approach to Testing Requirements

By Bernie Lorenz, PhD
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Mold is ubiquitous in nature and can be found everywhere.1 Cannabis growers know this all too well – the cannabis plant, by nature, is an extremely mold-susceptible crop, and growers battle it constantly.

Of course, managing mold doesn’t mean eradicating mold entirely – that’s impossible. Instead, cultivation professionals must work to minimize the amount of mold to the point where plants can thrive, and finished products are safe for consumption.

Let’s begin with that end in mind – a healthy plant, grown, cured and packaged for sale. In a growing number of states, there’s a hurdle to clear before the product can be sold to consumers – state-mandated testing.

So how do you ensure that the product clears the testing process within guidelines for mold? And what tools can be employed in biological warfare?

Mold: At Home in Cannabis Plants

It helps to first understand how the cannabis plant becomes an optimal environment.

The cannabis flower was designed to capture pollen floating in the air or brought by a pollinating insect.

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

Once a mold spore has landed in a flower, the spore will begin to grow. The flower will continue to grow as well, and eventually, encapsulate the mold. Once the mold is growing in the middle of the flower, there is no way to get rid of it without damaging the flower.

A Name with Many Varieties

The types of spores found in or around a plant can make or break whether mold will end with bad product.

Aspergillus for example, is a mold that can produce mycotoxins, which are toxic to humans2. For this reason, California has mandatory testing3for certain aspergillus molds.

Another example, Basidiospores, are found outside, in the air. These are spores released from mushrooms and have no adverse effects on cannabis or a cannabis cultivation facility.

Fungi like powdery mildew and botrytis (PM and Bud Rot) typically release spores in the air before they are physically noticed on plants. Mold spores like these can survive from one harvest to the next – they can be suspended in the air for hours and be viable for years.

How Mold Travels

Different types of spores – the reproductive parts of mold – get released from different types of mold. Similar to plants and animals, mold reproduces when resources are deemed sufficient.

The opposite is also true that if the mold is under enough stress, such as a depleting nutrient source, it can be forced into reproduction to save itself.4

In the end, mold spores are released naturally into the air for many reasons, including physical manipulation of a plant, which, of course, is an unavoidable task in a cultivation facility.5

Trimming Areas: A Grow’s Highest Risk for Mold

Because of the almost-constant physical manipulation of plants that happen inside its walls, a grow’s trimming areas typically have the highest spore counts. Even the cleanest of plants will release spores during trimming.

Best practices include quality control protocols while trimming

These rooms also have the highest risk for cross contamination, since frequently, growers dry flower in the same room as they trim. Plus, because trimming can be labor intensive, with a large number of people entering and leaving the space regularly, spores are brought in and pushed out and into another space.

The Battle Against Mold

The prevalence and ubiquitous nature of mold in a cannabis facility means that the fight against it must be smart, and it must be thorough.

By incorporating an upstream approach to facility biosecurity, cultivators can protect themselves against testing failures and profit losses.

Biosecurity must be all encompassing, including everything from standard operating procedures and proper environmental controls, to fresh air exchange and surface sanitation/disinfection.

One of the most effective tactics in an upstream biosecurity effort is fungal monitoring.

Ways to Monitor Mold

Determining the load or amount of mold that is in a facility is and always will be common practice. This occurs in a few ways.

Post-harvest testing is in place to ensure the safety of consumers, but during the growing process, is typically done using “scouting reports.” A scouting report is a human report: when personnel physically inspect all or a portion of the crop. A human report, unfortunately, can lead to human error, and this often doesn’t give a robust view of the facility mold picture.

Another tool is agar plates. These petri dishes can be opened and set in areas suspected to have mold. Air moves past the plate and the mold spores that are viable land on the dishes. However, this process is time intensive, and still doesn’t give a complete picture.

Alternatively, growers can use spore traps to monitor for mold.

Spore traps draw a known volume of air through a cassette.The inside of the cassette is designed to force the air toward a sticky surface, which is capable of capturing spores and other materials. The cassette is sent to a laboratory for analysis, where they will physically count and identify what was captured using a microscope.

Spore trap results can show the entire picture of a facility’s mold concerns. This tool is also fast, able to be read on your own or sent to a third party for quick and unbiased review. The information yielded is a useful indicator for mold load and which types are prevalent in the facility.

Spore Trap Results: A Story Told

What’s going on inside of a facility has a direct correlation to what’s happening outside, since facility air comes infromthe outside. Thus, spore traps are most effective when you compare a trap inside with one set outside.

When comparing the two, you can see what the plants are doing, view propagating mold, and understand which of the spore types are only found inside.

Similar to its use in homes and businesses for human health purposes, monitoring can indicate the location of mold growth in a particular area within a facility.

These counts can be used to determine the efficacy of cleaning and disinfecting a space, or to find water leaks or areas that are consistently wet (mold will grow quickly and produce spores in these areas).

Using Spore Traps to See Seasonality Changes, Learn CCPs

Utilizing spore traps for regular, facility-wide mold monitoring is advantageous for many reasons.

One example: Traps can help determine critical control points (CCP) for mold.

What does this look like? If the spore count is two times higher than usual, mitigating action needs to take place. Integrated Pest Management (IPM) strategies like cleaning and disinfecting the space, or spraying a fungicide, are needed to bring the spore count down to its baseline.

For example, most facilities will see a spike in spore counts during the times of initial flower production/formation (weeks two to three of the flower cycle).

Seasonal trends can be determined, as well, since summer heat and rain will increase the mold load while winter cold may minimize it.

Using Fungal Monitoring in an IPM Strategy

Fungal monitoring – especially using a spore trap – is a critical upstream step in a successful IPM strategy. But it’s not the only step. In fact, there are five:

  • Identify/Monitor… Using a spore trap.
  • Evaluate…Spore trap results will indicate if an action is needed. Elevated spore counts will be the action threshold, but it can also depend on the type of spores found.
  • Prevention…Avoiding mold on plants using quality disinfection protocols as often as possible.
  • Action…What will be done to remedy the presence of mold? Examples include adding disinfection protocols, applying a fungicide, increasing air exchanges, and adding a HEPA filter.
  • Monitor…Constant monitoring is key. More eyes monitoring is better, and will help find Critical Control Points.

Each step must be followed to succeed in the battle against mold.

Of course, in the battle, there may be losses. If you experience a failed mandatory product testing result, use the data from the failure to fix your facility and improve for the future.

The data can be used to determine efficacy of standard operating procedures, action thresholds, and other appropriate actions. Plus, you can add a spore trap analysis for pre- and post- disinfection protocols, showing whether the space was really cleaned and disinfected after application. This will also tell you whether your products are working.

Leveraging all of the tools available will ensure a safe, clean cannabis product for consumers.


References

  1. ASTM D8219-2019: Standard Guide for Cleaning and Disinfection at a Cannabis Cultivation Center (B. Lorenz): http://www.astm.org/cgi-bin/resolver.cgi?D8219-19
  2. Mycotoxin, Aspergillus: https://www.who.int/news-room/fact-sheets/detail/mycotoxins
  3. State of California Cannabis Regulations: https://cannabis.ca.gov/cannabis-regulations/
  4. Asexual Sporulation in Aspergillus nidulans (Thomas H. Adams,* Jenny K. Wieser, and Jae-Hyuk Yu):  https://pdfs.semanticscholar.org/7eb1/05e73d77ef251f44a2ae91d0595e85c3445e.pdf?_ga=2.38699363.1960083875.1568395121-721294556.1562683339
  5. ASTM standard “Assessment of fungal growth in buildings” Miller, J. D., et al., “Air Sampling Results in Relation to Extent of Fungal Colonization of Building Materials in Some Water Damaged Buildings,” Indoor Air, Vol 10, 2000, pp. 146–151.
  6. Zefon Air O Cell Cassettes: https://www.zefon.com/iaq-sampling-cassettes
german flag

Germany Enters The Fray On Novel Food

By Marguerite Arnold
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german flag

The novel foods discussion in Europe is a thorny one- and further one very misunderstood by natives, let alone those who would take Europe by canna storm. Within Europe, this discussion has festered and percolated for the better part of two years. Last year, despite a huge bump in sales in certain regions (see Switzerland), police were directly involved on the ground in Spain and rumblings of the same possibility took place in Austria at the end of the year. Early this year, further indecision at the EU level has continued to confuse the entire discussion.

This year, while there have been recent blow-ups in the UK, and fights at the EU level, the main action has been in the DACH region of the EU. The DACH trading alliance includes Germany, Switzerland and Austria.

In fact, the debate in this region of the world may drive not only European but UN policy. For that reason, the road currently is a thorny one, with lots of drama shaking out along the way in policy fights that still, at least in many European countries, involve the fuzz and what has been ostensibly packaged and labelled as “health food.”

It is for that reason that the most recent move by the German Federal Office of Consumer Protection and Food Safety (or BVL), which said that CBD should not be sold in food at all, has gotten all the attention lately. Especially and more worrying for the nascent CBD industry across the continent, the agency also opined that it does not see a case where CBD-containing cannabis would be marketable in foods or health supplements.

european union statesLast month, on April 11, the European Industrial Hemp Association (IEHA) issued a sharp rebuttal to the same. As they have just been asked to serve in an advisory role in setting EU regulations on novel foods and hemp extracts, this is likely to move the conversation forward regionally. Including in the DACH region where this issue is all over the place.

What Exactly Does Novel Foods Regulation Cover?

Novel Foods regulation in Europe covers two things, and this is true far from cannabis. It is consumer rights legislation and guidelines that cover all plant-based food and supplements across the continent. It also covers beauty products (since the skin is the body’s largest external organ) although so far, this tiny part of a niche industry has largely escaped attention. Do not expect that to last.

Where this crosses with cannabis is an interesting discussion. Hemp and cannabis of course have been consumed in Europe for thousands of years. As such, food and extracts of the plant, from species that occur naturally here, normally would not raise a fuss. However, this discussion has also become complicated for a few reasons. Starting with the fact that the seeds and strains now being developed in the U.S. and Canada are not “native” to the European region.

In fact, the early exports across the Atlantic (and there have now been a few) are all on the hemp side of the equation. Currently hemp is the only plant containing CBD that is recognized as viable under novel foods. Cannabis sativa strains that are low in THC are where this whole discussion gets dodgy. The strain, Girl Scout Cookies, and its contents including CBD for example, would under this regime, never be allowed. Nor would cannabis strains bred for their low THC in the United States.

The second issue is how such plants are processed and the cannabinoids extracted. That is another issue that directly relates to how concentrates, tinctures and extracts are made in the first place. This is also in the room.

But that is also where the entire debate also spins off into other semantic hair-splitting that the industry so far has found not only tedious but largely impenetrable.

Why Is The German Announcement So Cynical?

Germany is following its DACH neighbour Austria to directly put the brakes on the CBD and THC discussion across the border with Switzerland. In contrast to its Teutonic trading partners, the Swiss have been experimenting with all kinds of CBD products, from all sorts of sources, and are now talking THC recreational trials (even if sold out of pharmacies).

The structure of cannabidiol (CBD), one of 400 active compounds found in cannabis.

In contrast, over the last six months, both Germany and Austria have come out with statements and official pronouncements not about hemp, per se, but rather CBD- a cannabinoid found in all instances of both hemp and cannabis sativa. While politically this might send a statement that both countries are not ready to engage the cannabis debate on the next level (beyond medical in other words), scientifically of course, this is a silly argument to make. A cannabinoid is a chemical compound that acts the same whether it comes from cannabis, hemp or synthetic sources (see the synthetic dronabinol).

In the meantime, CBD itself has not been declared a “novel food.” In other words, for all the legal regulatory “brakes” and excuses, the dust is starting to clear on the debate as both regional and international bodies finally take on the entire cannabis discussion, albeit in a plodding, multi-year way. That, however, is undeniably under way at this juncture.

In the meantime, look for political grandstanding about every cannabinoid under the sun and further such drama will not abate even with “recreational” reform. Even when Europe accepts full boat regulated, recreational, novel food regulation will still be in the room. Even if politicians no longer play games with individual cannabinoids.

That said, at this point, that is also unlikely. In other words, expect the battle on the novel food front to continue for the entire industry, and shift, when recreational comes, to merely another cannabinoid, unless policy makers address the bottom-line issues now.

Cannabusiness Sustainability

Packaging: Four Sustainability Principles

By Brett Giddings, Olivia L. Dubreuil, Esq.
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As with any product, packaging has a vast range of sustainability considerations that should be accounted for in its design, development and use. Often the most visible component of any product, and certainly so for most forms of cannabis products, packaging is a key sustainability issue for the entire cannabis supply chain.

What is sustainable cannabis packaging and what does it look like? This can be a loaded question, but one we can revisit after considering the basic functions of packaging.

Cannabis packaging, and packaging generally, is designed to perform three basic functions: protection, preservation and promotion. If it does not adequately address these three areas then the chance of product failure, loss of consumer trust and increased waste is likely.

Let’s take a high level look at each of these:

  • Protection: Whilst cannabis is not currently travelling huge distances, like some of the food we consume, protection is key at each point of the supply chain. Inputs into the growing process often come packaged, flowers and such are packaged for shipping and storage, bulk-packaged cannabis is sent to dispensaries, extractors, etc, and ultimately re-packed into what will become the consumer-facing packaging. Importantly for cannabis, it may require an additional level of protection to ensure children are not able to access the contents.
  • Preservation: Like any consumable item, cannabis has a shelf life, and packaging plays a key role in preserving the usability of the product. Whether it is a chocolate, a cannabis-infused drink, or flowers, it is critical that each product maintains a certain level of quality and consistency.
  • Promotion: Packaging allows one part of the supply chain to communicate specific elements of a product to those further along the supply chain. The most obvious, and for cannabis probably the most important, is the communication of contents within a packaged item (labeling), such as the percentage of CBD in a gummy or origin of a particular bud. Packaging is also the reflection of a brand, an image.

Taking these basic elements into account, we can apply a framework for designing and choosing more sustainable packaging. This framework for cannabis packaging accounts for and balances four principles: Fit for purpose, efficient, low impact and re-usable.

Fit-for-purpose. Essentially, this involves making sure that the packaging adequately performs the ‘3-Ps’ above. Packaging commonly accounts for less than 10% of the energy inputs that have gone into a complete product (for example, a candy packaged in a foil-lined plastic wrap). If the packaging fails to protect and preserve the candy, then the energy (or the water, the material, the investment) embedded in the product it contains is wasted.

The second principle relates to material efficiency. Once the packaging works, it is then important to minimize material and resource inputs. Effectively designed packaging uses lighter-weight materials and reduced numbers of materials and components. It also reduces air space and maximizes transport yields.

The third principle involves using low-impact materials. Material inputs should come from non-controversial sources, such as verified/certified supply chains and suppliers that have been assessed to ensure appropriate sustainability-related issues are addressed. Wherever possible, consider renewable and recycled-content inputs, and those made using renewable energy.

Finally, cannabis packaging should be re-usable, recoverable and/or recyclable at end of life. Consider materials and design formats that can be reused multiple times, and packaging that can be recycled and composted by consumers in the systems readily available. Linking back to the third ‘P’, Promotion can be used to make sure that your packaging clearly communicates what someone should do with your packaging. If it is recyclable, returnable, reusable or plantable, tell them it is and how to proceed.

Bear in mind that the most sustainable packaging options are often the result of thinking outside the box. The design process of your packaging should include brainstorming and researching outside of your own industry. What are new and innovative solutions, new materials, new ways to think about product conception that could negate the need for unnecessary packaging elements. New and innovative packaging solutions can raise your business’ profile, catch consumers’ attention and attract investors. It showcases your business as a forward-thinking one.

Packaging sustainability can look different for each and every cannabusiness. It is important to make sure that the four principles are part of your packaging selection/design process. As with any other sustainability issue, it is best to start thinking about packaging early on, and considering packaging as a part of the actual product system.

If you are not thinking about packaging sustainability, be assured that regulators, consumers and your industry peers are. Make sure you are driving the discussion about packaging, rather than being driven by those who may not fully understand your packaging needs.