Jeff Lowenfels  Author of "Teaming with Microbes", "Teaming with Nutrients" and "Teaming with Fungi"

I have been looking for a quick, inexpensive and simple home test to determine if soil and products “Team With Microbes” for years. The microBIOMETER® is just what the soil food web ordered! 

bio365   Produces biologically activated and nutrient dense biochar soils for professional cultivation.

Awesome to meet you guys - what a difference your tech made to quantifying bio365 soil! 

 Galil Soil Farm located in Yavne'el, Israel. Binyamin Klempner Producer of Artisian Soil Amendments

As a small business owner in the business of creating the highest quality artisan soil amendments, I found myself at a distinct disadvantage. While I knew by observation, and more importantly from results, that my products are the best, I was lacking scientific data and actual numbers. Although I purchased a microscope, recognizing and identifying what I was looking for was beyond the scope of my expertise. This lack of hard data made me unsure of, and even doubt, my products. 

microBIOMETER® has been a tremendous game changer for me. Now I can test my soil amendments and know without a doubt (with soil Microbial Biomass (MB) levels ranging from 436-2029) that mine are the best soil amendments being put on the market. This confidence in my products, the confidence afforded to me by microBIOMETER® allows me to approach customers with the confidence I need in order to be successful. And of course, plant success is my success.

Heritage Tree Care   Provides professional tree care to residential and commercial customers.

We use your microBIOMETER® to assess the ability of soil underneath trees to cycle nutrients. If we have client with a sick tree, we can quickly see if the problem is low microbial biomass. If it is, then we can do vertical composting and apply humate (among other things) to start a positive feedback loop which sets up long term tree health. The speed at which we get results with your product makes it vastly superior to traditional soil nutrient tests.  

Bryan Wachsman (303organiccannabis) Living soil cannabis educator. 

This is one of the ways you can test what you're doing at home as far as the levels of microbes you have within your soil system.

Todd Dalotto (CAN! Research) Innovates and implements protocol for the scientific research of cannabis.

microBIOMETER® is portable, easy to use and offers instant results. I also appreciate the developer's passion for soil microbiology.

Cassandra Maffey  Master Grower for Verde Natural, CEO/Master Grower for Force of Nature, LLC 

Until now, monitoring the microbial biomass in my large scale Living Soil cultivation facilities has been costly and time consuming. Sending my soil samples out for evaluation can take a week or more. With the microBIOMETER®, I’m able to see instantaneous and accurate results. This test allows me to see how the choices I made yesterday (any feed, watering, or environmental change) affects my Soil Food Web today. With microBIOMETER®, I can innovate and troubleshoot quickly, which is essential when running a professional garden.

Additionally, microBIOMETER® allows growers who prefer soil cultivation to harness cutting edge monitoring technology in an industry that has catered to hydroponic growers for too long.  I have extremely meticulous clients throughout the USA, and we use microBIOMETER® in all of our gardens—from Humboldt to Denver to Pennsylvania and Ohio. Really happy with this product. 

Ben Samuelson (soilbiology.tech) Graduate student at the University of Nebraska - Lincoln specializing in horiculture.


The soil microBIOMETER® system was by far the easiest, quickest, and cheapest test in an extensive panel of measures I am using in my graduate research comparing various composts.  The variability of repeated measures by microBIOMETER® is low, so it is a promising tool for research that needs many samples of adequate precision.  While the test reports in micrograms of microbial biomass, it may also be a useful tool for determining other attributes of the sample like soluble organic carbon etc.

There is no one definitive or perfect way to ascertain soil microbial biomass, a quick tool like the microBIOMETER® opens up the benefits of taking many measures to understand differences across place, management, or time.

Amazon Review
It took me a while before I finally pulled the trigger and decided to buy this “lab-grade kit”, but after hearing Jeff Lowenfels talk about it at a conference, I had to try it out. The results were amazing and gave me an accurate biomass reading. I decided to test out my non living-soil and the results came back much lower than my living soil biomass results! Honestly I can now see why they are saying this is 10% of the cost of an actual lab test because the whole procedure actually felt like it was something a scientist would actually do!