The What, How, and Why of Water Activity in Cannabis

As published in Cannabis Science and Technology, Aug 2019 

By Dr. Brady P. Carter

Water activity is widely recognized for the safety it provides to food because of its control of microbial growth and it is considered a critical control point for preventing microbial contamination. Water activity provides this same determination of safety in cannabis and consequently is already a part of cannabis regulations in many states. However, at this point, it remains primarily associated with edibles, linking it back to food safety. While water activity is important for the safety of cannabis edibles, it is also important for storage stability of harvested buds and extracts. If cannabis buds are not dried to water activity levels below 0.70 aw, they can support mold growth during storage and transport, leading to the subsequent potential for inhalation of mold spores or mycotoxins. In addition, water activity controls the rate of decarboxylation that can lead to the breakdown of tetrahydrocannabinol (THC). Finally, water activity is correlated to additional critical product quality attributes that are associated with shelf life. In fact, it is possible to predict shelf life based on water activity and to establish an ideal water activity specification for any cannabis or hemp-based products. The objective of this manuscript is to explain the theory and measurement of water activity, explain its mode of action for microbial control, discuss existing water activity regulations for cannabis, and describe additional uses for water activity in the cannabis industry.

Read more: The What, How, and Why of Water Activity in Cannabis

Seed and Grain Analysis by MultiSpectral Imaging

Watch this new short clip - VideometerLab 4 Multispectral imager can assist in the analysis of Seed and Grains by determination of surface color, texture, shape, size and chemical composition.

Read more: Seed and Grain Analysis by MultiSpectral Imaging

Let's be honest - A review of Water activity measurement methods

Dr. Brady Carter - Application scientist provides a non biased review of the pros and cons of the four different methods of measuring water activity

Dr. Brady Carter - New addition to our team

February 2019.     Neutec, in its effort to provide complete solutions to its customers, is excited to announce a partnership with Dr. Brady Carter. As many of you may know, Dr Carter is one of the world’s foremost authorities on water activity and moisture sorption with 20 years of experience as a research scientist. He has authored numerous publications, presented hundreds of webinars, and provide training seminars across the world on all aspects of water activity measurement and application. The combination of Dr. Carter’s knowledge and expertise with Neutec’s world class product line-up and customer service, allows Neutec to provide its customers with complete solutions, not just instrumentation.

Dr. Carter’s efforts in working with Neutec will be focused on providing scientific support and identifying solutions for customer challenges. Dr. Carter is looking forward to working with all of you to not only solve your water activity challenges but also explore other solutions that will improve the quality and stability of your products. Dr. Carter will be available to customers to provide application support and answer questions by phone or email. In addition, Dr. Carter will be participating in customer visits and training seminars. Customers interested in contacting Dr. Carter for support or to arrange for an in-house training visit should contact him at This email address is being protected from spambots. You need JavaScript enabled to view it. or by calling Neutec at 1-888-810-5179

Application of Multispectral Imaging (MSI) to Food and Feed Sampling and analysis

November 2017 -New LGC report evaluates a number of exciting VideometerLab applicationsvml lgc pic
LGC: "MSI represents an emerging analytical technology within the food sector with the potential to augment or even replace multiple current tests with a single flexible platform."

The full report can be downloaded here>>

Mespresso Microwave Media/Agar Preparator

touchscreen mespresso SNovember 2017 - We are excited to offer you this new innovative tehcnology which allows you to run a quick media sterilization cycle for small batches of agar or media.

The all new Mespresso microwave media preparator will do the job in minutes instead of hours and is perfect for specialty agar preparation or when you are in urgent need of a small quantity. You no longer have to wait for a full large sterilizer run or stand in line. At Neutec Group we are always thinking about your work flow productivity. Finally there is a quick fix!

Press here to learn more >>>>

LabMaster Neo Water Activity Meter

July 2017 - Neutec Group has launched together with its partner Novasina Swiss, a newly designed state of the art water activity meter called LabMaster Neo.Labmaster Neo 250pix


The newly designed LabMaster will be bringing true innovation to the Water Activity field and we are excited have had it on our display for the first time globally during the IFT meeting in Las Vegas Early July 2017

Read more: LabMaster Neo Water Activity Meter

Sphere Flash Automated Colony Counter

August 2017 - Neutec Group has launched together with its partner IUL Instruments, a newly designed state of the art Colony counter named the Sphere Flash.Shpere Flash small

The Sphere Flash colony counter will replace the Flash and Grow automatec colony counter - a well proven device that have been succesfully serving  hundreds of microbiology lab world wide.

The Sphere Flash Modern led illumination, combined with a unique patent pending Sphere that operates as a perfact closed enviroment to best light conditions and images taking, smart but user friendly colony counting software together with a high resolution camera, makes for a powerful affordable automatic colony counter system.

Sphere Flash Colonies Pro Software designed for more demanding users who require increased capabilities such as, setting user's permission levels, LIMs connectivity, working with worksheets, Barcode reading, Reporting, audit trail and CFR21Part 11 compliance.

A detail list of the features and benefits of this leading innovative technology are posted on the Sphere Flash page here >>

Amphasys Teams Up With Neutec Group

Neutec Group is proud to announce our partnership with Amphasys for North American Distribution.  Amphasys’ patented “lab-on-chip” technology enables efficient and reproducible determination of pollen viability, ploidy and developmental stages of microspores. In collaboration with the New York based Neutec Group, the highly innovative solutions from Amphasys are now made available to customers in the U.S.A. and in Canada.

Read more: Amphasys Teams Up With Neutec Group

Pollen Viability and Count made easy - Ampha Z32

Neutec group is happy to introduce an innovative new powerful tool for analyse of pollen viability thereby helping to increase the yield of high quality seed and to reduce the cost of production (for 

Z32 impedence flow cytometer small

example by increasing the female-to-male ratio and the yield per plant) by Amphasys Swiss using a Flow Cytometry innovative and patented technology.

Learn More »

Introduction to MultiSpectral Imaging Video

Watch this new short clip - VideometerLab 3 is a vision-based lab analyser designed for fast and accurate determination of surface color, texture, shape, size and chemical composition.

Read more: Introduction to MultiSpectral Imaging Video

New Web Site Design

April 2015 - Neutec Group is happy to announce a recently launched newly designed web site with state of the art conformity to the quick changing internet landscape.

The new website is even more information with videos, application notes etc., offers areas for customer to leave reviews, offers more purchasing options, adaptability to mobile devices and many more features.

Let us know what you think and thank you for your feedback and  patience as we work some of the final bugs out.

Tube and Bottle Filler XY TF-3000

The new TF-3000 from Biotool Swiss automated tube and bottle filler automates the repetitive labor intensive process of filling of tubes & bottles. Set up is easy, just place the rack (you can practically use any commercial rack in the market - as long as it fits on the filling platform), train the intelligent yet simple to use software about the position of your racks, size of tubes and requested filling volume and let the TF-3000 do the rest.

Learn More »

Petri Labeler - Barcode Labeling

The unit automatically tags barcode labels on the side walls of Petri plates.
Operating the unit is as simple as feeding a stack of Petri plates on one end, pushing the “start” button, and collecting labeled plates at the other end. The Petri Labeler labels plate walls, enabling comfortable inspection, reading, and counting of Petri plates.

Learn More »

Oxidative Stability Test Reactor Video

Chemical reactions occurring between atmospheric oxygen and food sensitive components are some of the most important causes of product degradation. Specifically, fat oxidation is recognized as one of the main factors which affects Food shelf life. For this purpose, Velp Scientifica has developed the OXITEST, an innovative instrument, able to provide the lab operator with high added value information related to the fat oxidation processes in samples of foods, oils and fats.
The determination of the oxidation stability of samples (solid, doughy or liquid), in order to determine their quality or to determine their state of preservation is made directly on the whole sample, without preliminary fat separation.

Learn More »

Plate Pourer - Agar/Media Filler PS200 - New

Neutec Group is proud to offer innovative agar plate filler systems by Biotool Swiss.

The carrousel filler with the removable rack for safe and effortless dish loading PetriSwiss PS200 automatically fills and stacks dishes in removable safety racks. This unique, removable rack principle allows racks to be prefilled and loaded onto the rack disk at any time. The dishes can remain stored in the rack, in a safe and stable stand. The unit down time for a refill is minimal!

Learn More »

Eddy Jet 2- Spiral Plater- New

eddy jet spiral plater loading syringeThe all new Eddy Jet 2 Spiral Plating System is a color screen touch screen fully programmable spiral inoculation instrument with accuracy and reproducibility of greater than 99%. The Eddy Jet 2 Spiral Plater uses a unique gamma-Irradiated disposable micro-syringe for each new sample, eliminating cross-contamination and the need for a vacuum source or washing steps.

Learn More »

New - PCR Photo Activation System for Tubes

Neutec Group is excited to introduce an innovative device from GenIUL. The PhAST - PhotoActivation System for Tubes - neutralizes the DNA of dead organisms through the use of photo-activable intercalating agents.

The samples treated with the system enable the detection of DNA from only the living cells by conventional PCR or Real Time PCR.

PhAST is thermally stable with a constant and uniform light dose. It allows simultaneous photo activation of 12 samples in a simple and efficient manner.

Learn more »

New agar plate filler systems by Biotool Swiss

Neutec Group is proud to offer innovative agar plate filler systems by Biotool Swiss.
This new series of fillers offer the state of the art technology of plate filler available today and include:

  • Bar code label printing and applying on every plate;
  • Changeable dish height stacking;
  • Touch screen.

This system was designed to be a much more reliable solution comparing to other carrousel fillers. The units are user friendly and engineered with user minimal down time in mind.

Learn more about the Biotool product offerings »

Robotic Colony Counter

Clinical Research Laboratories Inc. (CRL), based in Pistcataway New Jersey has purchased the first new Plate Handler robotic colony counter in the USA. The unit, recently installed, helps CRL maintain its leadership position in automation and rapid methods detection in personal care , health and beauty aids, OTC drug products and more.

In conjunction with the Eddy Jet spiral plater they have been using for some years now, CRL achieves highest level of productivity and reproducibilty in inoculating and counting of petri dishes at their microbial laboratory.

Learn more about the Plate Handler »