Consistent control of temperature and vapor pressure is critical to successful curing, drying and aging/storage. Traditional HVAC systems are known to  cause erratic conditions in drying and curing spaces and can create a potentially disastrous situation for products that need stable, controlled environments.

Patented Vaportrol Technology levels out the curing, drying and aging/storage environment in every season, climate and geography.  It takes the guess work and the risk out of seasonal humidity, and temperature swings. With this unique technology, you can have complete control of the drying and curing  process.

Using Vaportrol, you have independent control of  both temperature and dew point, adjusting the vapor pressure to fine tune conditions throughout the drying and curing process.  No other dry/cure solution offers this unique and advanced technology.

Take Control With Patented Vaportrol Technology

Patented Vaportrol Technology levels out the curing, drying and aging/storage environment in every season, climate and geography. It takes the guess work and the risk out of seasonal humidity, and temperature swings. With this unique technology, you have complete control of the drying and curing process.

US Patent #10674752
US Patent #11369119
European Patent #3745869

Why Relative Humidity (RH%) is NOT a Good Measure
Relative Humidity (RH%) is probably one of the most misunderstood terms we use when referring to drying and curing. RH% is made up of 2 absolute numbers: Dry Bulb and Dew Point Temperatures. This means that you can have the same RH% at 50° degrees and 80° degrees.

Think about that for a minute… by using temperature and dew point we control the Vapor Pressure… and have 100% control of the process.

Vaportrol Technology stabilizes conditions. There is never ‘excess’ free water so you can hold your flower in the perfect environment.
No Burping – No Kidding

Increase Yield and Profitability

Vaportrol Technology gives precise control of vapor pressure in a space. When we can control the vapor pressure, we can control the water activity of the product in the space. And when we control the water activity – we stop over drying product.

What do Cheese, Meat and
Cannabis have in Common?

Proven Technology

We like to say…you can’t fool physics. While the conditions required for cheese, meat and cannabis are all unique, the physics are the same. What do all three have in common? The success of all these products is based on both superior raw materials and excellent maker skills, but controlled water loss and correct final water content are critical to finishing the product properly. They all require controlled water removal and ultimately they are all sold by weight. Over-drying any of these products results in inferior, inconsistent product quality and importantly, lost profits.

About the Inventor

David Sandelman

COO, CTO & Co-Founder, Cannatrol

David Sandelman is a serial inventor, problem solver, entrepreneur and the creator of Cannatrol Systems for cannabis postharvest processing. A veteran of new product development in the HVAC industry, he leads the production and engineering initiatives at Cannatrol’s parent company, VT Dry & Cure Technologies. David holds 19 patents—including two relating to the drying, curing and storage of cannabis—and among his early inventions is the two-wire digital clock thermostat that helped consumers address the energy crisis of the late 1970s. A firm believer that every problem has a solution, David has decades of experience building and designing industrial controls, and worked on new cooling technologies at Oak Ridge National Laboratory and the Electric Power Research Institute. He is also accomplished in production design, wireless and cellular communication, and electrical engineering.

David’s experience as a construction and industrial consultant includes oversight of all mechanical, electrical and plumbing design for a 20-story luxury highrise condominium project, and design services for food processing plants’ heating and cooling systems used for production equipment. As VP and CTO at Notifact Corporation, he conceptualized a low-cost wireless monitoring system—spun off from his time as VP of New Business Development at Heat-Timer Corporation—that created a new service category in the $80 billion HVAC industry.

In addition to his mechanical engineering career, as a side project David and his wife renovated and ran an inn and restaurant that won awards from Saveur and Food & Wine magazines and was named one of the “Top 10 Culinary Inns in America” by Fodors. David lives in Vermont and is schooled in whitewater guiding and rescue, as well as rock climbing instruction. When time permits, he also enjoys mountain biking, hiking and skiing.

Our Products

©2025 Cannatrol. All Rights Reserved.