SIGN UP NOW: Biochar & Biology Hands-On Learning in Healdsburg, Sonoma County, December 10-11. 

$75 for 2 days/$45 for single day (includes Lunch) sign up at ​​​

Biochar promotes healthier soils, crops and vineyards

Benefits include improved soil structure, terroir and plant health
Biochar also enhances root growth — you can SEE and TASTE the difference 

SymSoil’s patent pending process cultivates the complete soil ecosystems, using methods from multiple composting traditions and proprietary techniques.

What is BIOCHAR?

Biochar is a solid material obtained from the carbonization of biomass.

It is a fine-grained, highly porous charcoal that enhances soil by retaining nutrients and water.

Customers use SymSoil as a biochar activator
 to enhance terrior. 

This is achieved through  reduced compaction, improved porosity, cation exchange, increased pH, retained water, improved hydaulic conductivity, promoted growth of microorganisms and
sequestered CO2.  ​​

Biochar Improves the Environment by:
  • Reducing nitrous oxide emissions 50-80%
  • Reducing phosphorous and nitrogen in groundwater
  • Increasing soil carbon and reducing atmospheric CO2
  • Reducing forest fuel load
  • Sequestering carbon
0% biochar on left
​20% biochar on right
Corn in poor soil on left
Biochar amended soil on right
Biochar for Vineyards
California vineyards using biochar include: Ridge Vineyards, Clos de Bois and Paradise Ridge Winery (Sonoma County), Bonny Doon Vineyard at Popelouchum vineyard (San Benito County), Bonterra Vineyards (Mendocino), Spring Mountain Vineyard (Napa County), Monterey Pacific Vineyard Management Company (Monterey County), and many others. 

Hans-Peter Schmidt is the European thought-leader in using biochar in vineyards. He first established a biochar trial at experimental vineyard Domaine de Mythopia in Switzerland in 2007.  Since then, his work with biochar has expeanded into Germany, Norway, France, Switzerland, Spain, Italy and Austria.  He has published the following information about biochar improving production and quality of wine grapes.

The 2010 data collected for the biochar experiment confirm the results of previous years and show ar has a significant influence on all parameters investigated. Due to the significantly improved grape health, higher anthocyanin, higher amino-N and lower acid value an improved wine quality can be expected in the biochar treatment. It confirms literature findings (Lehmann 2003) that biochar treatments shift plant nutrient uptakes to their particular optimum ranges. For some elements, this means an increasing uptake while for others a decrease.
A Case Study 


Biochar by the bucket, yard or truckload   

We start with the best biochar we can find (and we search far and wide!). Then fully condition and colonize with the Symsoil biology, and ready for application, so it will boost the performance of even your best soil.

To purchase biochar, contact .

Fungal Infused Biochar   

Early versions of these products are available. We are seeking partners to test biologically active products designed for the saltier and more alkaline non-potable water, and the harsher environmental conditions associated with parking lots and asphalt heat deserts.

SymSoil, as a company, focuses on microbial diversity for soil health, and recolonizing native soil biomes and using biology to improve drought tolerance through soil porosity and water retention.

​To purchase fungal infused biochar, contact

Vineyard Biochar Class in Sonoma County  

Join us in a class on how to create biochar with your vineyard's agricultural waste. As a service, SymSoil's team can come to your vineyard to do a burn or create compost.  We can create a sustainable process that works in your vineyard for future seasons.

To learn more about currently booked Biochar Burn Classes at other locations, or to book a burn at your location, contact .
Meet The Team
  1. Katharine Hinson
    Katharine Hinson
    President, Science
    Over a decade of experience in organic farming, focusing on a variety of approaches to composting and microbial development on behalf of cannabis growers.
  2. Peter Hirst
    Peter Hirst
    Science Team
    Nationally recognized expert in biochar and related chemistry and agriculture. More than a decade of biochar innovation, mentor to regenerative agriculture entrepreneurs.
  3. Cuauhtemoc Landeros
    Cuauhtemoc Landeros
    Science Team
    Has been trained as a Soil FoodWeb Advisor and as an Advanced Permaculture Designer. He has 9 years of composting experience.
?Want to Learn More
Check out these articles:

Biochar in Vineyards
by Hans-Peter Schmidt
of  International Biochar initiative

Biochar in Viticulture – New Results
by Hans-Peter Schmidt and Claudio Niggli


Plant growth improvement mediated by nitrate capture in co-composted biochar
by Claudia I. Kammann, Hans-Peter Schmidt, Nicole Messerschmidt, Sebastian Linsel, Diedrich Steffens, Christoph Müller, Hans-Werner Koyro, Pellegrino Conte, Stephen Josep

SymSoil Inc. 
A California Benefit Corp.

A scalable alternative to chemical fertilizers.  Bacteria that break down glyphosate in every batch. Specialized batches for plants in salty or alkaline soil or environmental remediation.

If you are an accredited investor, seeking investment opportunties in Regenerative Agriculture, SymSoil comes with:
  • Experienced Management Team made up of Leading Experts in Living Soil and Biochar
  • Intellectial Capital
  • Proven Business Concept
  • Initial Orders

Reach out to Elizabeth Pearce at 415-595-4784 or

Contact Us