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Artisanal Cannabis Extraction – An Interview with Precision Founder Nick Tennant

By Aaron Green
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Cannabis and hemp derived concentrates are a rapidly growing product category. Formed by extracting cannabis using a variety of methods including ethanol, butane hash oil and CO2, concentrates find their way into consumer packaged goods as ingredients for infused products or as stand-alone products such as resins, rosins, distillates and hash.

Precision Extraction Solutions (Precision) was founded in 2014 to provide equipment and services to cannabis and hemp processors. In October 2021, Agrify (NASDAQ: AGFY) purchased Precision in a $50M cash and stock deal. The move positions Agrify to offer end-to-end infrastructure solutions for cannabis cultivators and processors.

We interviewed Nick Tennant, SVP of Innovation at Precision, now a division of Agrify. Nick founded Precision after seeing a need for quality equipment in concentrate processing. Prior to Precision, Nick was involved in a vertically integrated cannabis business in Michigan where he gained experience in cultivation, extraction and retail.

Aaron Green: How did you get involved in the cannabis industry?

 Nick Tennant: I’ve been in cannabis about 17 years now. I had family in Colorado and California who I started to interface with around 2006. Around 2008, Michigan passed their cannabis law, and we were one of the first businesses to get licensed. The subsequent five years from that law getting passed, up to 2013, I did pretty much everything in terms of commercial cannabis – cultivation, retail, edible manufacturing, you name it. Concentrates didn’t really exist in a meaningful way; the products definitely were there, but the technology wasn’t. I looked at technology at the time and it was very primitive, so we made a shift to focusing on concentrates. We launched Precision in 2014 and we basically shot out of a cannon, doing a million dollars in sales in our first 90 days. Since then, we grew the company up to 60 employees and substantial amounts of revenue. We sold Precision to Agrify in October of this year.

Green: Tell me about that transition from a cannabis products company to an equipment manufacturer.

Nick Tennant, SVP of Innovation at Precision Extraction Solutions

Tennant: It was a gradual transition. As I started to see the extraction niche expand, I really started to put more time and resources into it. When we launched Precision and were met with such success in just the first 90 days, I knew that I had to abandon everything else I was doing to focus on this. My former partners took over the businesses, like the grows. We worked out individual circumstances regarding how I was going to leave those businesses and focus full time at Precision.

Green: So, big news recently with the acquisition, congratulations on that! Tell me about Agrify and why a deal with Agrify made sense to you.

Tennant: The strategic rationale is that we are providing an end-to-end infrastructure solution. They have the horticultural aspect, an excellent public vehicle, and plenty of cash on the balance sheet to continue to scale the business and acquire additional constituents within the cannabis infrastructure. Getting to the point where you can exit the businesses, it’s a long road, and our business is very niche. We were seeking to partner with t a bigger player in the industry with more resources that would help us to scale what we were trying to do, and Agrify was the perfect fit.

Green: You’ve got several areas of focus at Precision ranging from ethanol extraction, distillation, and butane hash oil (BHO) extraction. Where are you focusing the business going forward?

Tennant: Going forward we want to provide that end-to-end one-stop shop infrastructural solution for any cannabis products company. We want Agrify to become the dominant and fastest growing player in the cannabis industry for infrastructural solutions, whether that’s horticulture or extraction. We’re continuing to expand our product portfolio into other niches so that if you’re building a cannabis facility, you only need to come to one company and the process is as simple as possible.

Green: What kinds of products are you seeing the consumer gravitate towards?

Tennant: I think that cannabis will remain to be very artisanal because of the uniqueness of the plant. If you look at similar industries, I could compare it to craft beer or winemaking. I think that hydrocarbon and water hashes will continue to play a substantial role. I also think that ethanol and distillate-based products will hold market share just like the Budweiser and Kendall Jacksons of the world.

People love the native sort of essence of the plant, that this is a plant sort of bestowed upon us by the universe with all these unique healing and restorative properties. I think that trying to capture those properties and that native essence of what’s going on within the genome of the plant and translate that into a product is going to be the theme that continues to dominate, and I think that for several reasons. For the same reason somebody will go to Whole Foods, and they’ll buy the local organic grown fruit or vegetables, people are going to gravitate towards artisanal cannabis products. People that consume cannabis, generally speaking, are more naturalistic or homeopathic than most.

Green: Precision has technology for a range of extraction methods where the focus has been on cannabis. Are you seeing any new markets outside of cannabis?

Tennant: Yes. We’ve dealt with varieties of different botanical extraction companies over the years, but they’re a very small segment of our business. We’re a cannabis business. Non-cannabis extraction may make up less than 1% of our business so it’s very small.

Green: What trends are you following in the cannabis industry?

Tennant: Consolidation, I would say, is a big one. MSOs are consolidating and buying up the small players. The second major trend is regulation, and what’s going on in DC. Beyond that, you obviously have new states coming online, shifting consumer trends, things like that. I would say these last two are less impactful from a macro standpoint, but nonetheless, still things that we follow.

Green: Following up on consolidation, do you see a demand for larger systems now?

Tennant: I’d say 95% of what we do is under 2000 pounds a day, which we consider artisanal. You’re not going to see large scale production consolidation because you have fragmentation by state. It would be most efficient for a cannabis manufacturer to manufacture everything in one location but it’s just not possible with the state laws. It’s very fragmented. Somebody like a Trulieve might have 20 different manufacturing operations, all running similar processes. Perhaps we will see more upon national legalization and the opening of state borders.

Green: What in your personal life or in the cannabis industry are you most interested in learning about?

Tennant: I am constantly learning. That’s just how my brain is, and the type of person that I am.  I’m interested in a variety of topics, but I think I’m most interested in how capital markets are going to materialize and substantiate around the federal legalization because we’re in this weird space of cannabis. It’s weird, because you have a boom industry that’s generating massive amounts of revenue and massive amounts of tax dollars, but you must remind yourself that there is no real liquidity in this market, meaning you can’t finance things. A typical cannabis company that wants to go out and get capital is getting rates between 16 to 18%. There’s just a capital restriction since cannabis is a Schedule I substance, and these large lenders don’t want to play into that.

The question in my head and the big catalyst for the entire industry is: what happens when we get a descheduling, decriminalization and/or legalization on a federal level? How does that affect the large funds sentiment to deploy this zero-interest rate capital that we’re seeing in the rest of the world? We’re seeing it in mortgages. We’re seeing it in every aspect of the world. There’s free money printing, but it’s not flowing into cannabis because those federal laws are prohibiting it as such. Ultimately, as more infrastructure comes online, these companies are not going to have to scrape by to build a $3 million lab. They can finance it at a reasonable interest rate, and the infrastructure can come online.

That’s going to be better for the consumer. There will be more infrastructure, more products, more research and development, more retail locations. Everything gets better, more convenient, and more robust. I would think that finance interest rates are the largest lever within the industry right now, and because of that, you’ll likely see cannabis capital markets go pretty crazy when legalization comes around.

Green: Okay, great. That concludes the interview.

Tennant: Thanks, Aaron.

plantsjacques

Optimizing Your LED Spectrum for Leaf Surface Temperature

By Andrew Myers
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Every detail counts at an indoor grow facility. Indoor growers have complete control over nearly every aspect of their crop, ranging from light intensity to air circulation. Among the most important factors to regulate is temperature. While ambient air temperature is critical, growers will also want to measure leaf surface temperature (LST).

To illustrate, let’s say you keep your living room at a cozy 76 degrees. Then, if you place a thermometer under your tongue – your body is (hopefully) not at 76 degrees but is likely between a healthy temperature of 97 to 99 degrees.

A similar story can be told for cannabis plants grown indoors. A grow facility’s ambient air is often different than the plants’ LST. Finding an ideal LST for plant growth can be complex, but modern technology, including spectrally tunable LED grow lights, can simplify monitoring and maintaining this critical aspect.

Why Should Growers Care About LST?

Temperature plays a pivotal role in plant health. Many biochemical reactions contributing to growth and survival only occur within an ideal temperature range. If temperatures dip or spike dramatically, growers may witness inhibited growth, plant stress or irreversible damage to their crops.

The leaf is among the most important plant structures as it’s where most metabolic processes happen. Therefore, finding an optimum LST can improve growth rate and the production of metabolites such as pigments, terpenes, resins and vitamins.

Because many plants rely on their leaves for survival, it makes sense that leaves have their own temperature regulation system. Evaporation through pores in the leaf – known as stomata – can cool the plant through a process called transpiration. Up to 90% of water absorbed is used for transpiration, while 10% is used for growth.

The efficacy of transpiration is determined by the vapor pressure deficit (VPD), which refers to the relative humidity in the ambient air compared to the relative humidity in the leaf. If relative humidity is low, the VPD can be too high, which may cause plants to have withered, leathery leaves and stunted growth. On the other hand, a low VPD correlates to high relative humidity, and can quickly result in disease and mineral deficiencies. Higher humidity often results in a higher LST as transpiration may not be as effective.

When it comes to LST, growers should follow these basic guidelines:

  • Most cannabis plants’ LST should fall between 72 and 86 degrees – generally warmer than the ambient air.
  • LST varies depending on individual cultivar. For example, plants that have evolved in colder climates can generally tolerate cooler temperatures. The same can be said for those evolved in equatorial or temperate climates.
  • CO2 availability also plays a role in LST; CO2 generally raises the target temperature for photosynthesis.

How Does Light Spectrum Affect LST?

We know that CO2 concentration, specific genetic markers and ambient temperature all play an important role in moderating LST. But another important factor at an indoor grow is light spectrum – especially for those using spectrally tunable LEDs. Growers will want to optimize their light spectrum to provide their crop with ideal conditions.

A combination of red and blue wavelengths is shown to have the greatest impact on photosynthesis and, thus, LST. Photons found along the green and yellow wavelengths may not be absorbed as efficiently and instead create heat.

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Indoor cultivator facilities often use high powered lights that can give off heat

Optimized light spectrums – those with an appropriate balance between red and blue light – create more chemical energy instead of heat, thereby resulting in a lower LST. Using fixtures that are not spectrally tuned for plant growth, on the other hand, can waste energy and ultimately contribute to a higher LST and ambient temperature, negatively affecting plant growth. Consequently, measuring LST doesn’t only indicate ideal growing conditions but also indirectly illustrates the efficiency of your grow lights.

LED fixtures already run at a lower temperature than other lighting technologies, so indoor growers may need to raise the ambient temperature at their grow facilities to maintain ideal LST. Switching to spectrally tuned LEDs may help growers cut down on cooling and dehumidifying costs, while simultaneously improving crop health and productivity.

What’s the Best Way to Measure LST?

There are several tools available for growers to measure LST, ranging from advanced probes to specialty cameras. However, many of these tools provide a reading at a specific point, rather than the whole leaf, leading to some inaccuracies. Temperature can dramatically vary across the leaf, depending if parts are fully exposed to the light or in the shadows.

Investing in a forward-looking infrared camera (FLIR) gives indoor growers a more accurate picture of LST and light efficiency. That being said, growers should not only measure leaves at the top of the plant, but across the middle and bottom of the plant as well. That way, growers receive a complete snapshot of growing conditions and can make changes as needed.

At an indoor grow facility, it’s not enough to only measure ambient room temperature. Of course, this aspect is important, but it will paint an incomplete picture of plant health. Measuring LST gives growers nuanced insights as to how plants respond to their environment and how they can better encourage resilient, healthy growth.

Using spectrally tunable LEDs makes achieving LST easier and more cost-effective. Lights with optimized spectrums for plant growth ensure no energy is wasted – resulting in superior performance and efficiency.