Biochar for  soil health

Made in California, from local walnut shells.

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Science and happy dirt



Soil supports all life on on earth. New topsoil can take a thousand years to form. Reviving soil is key to ensure resilience, ecosystems, climate regulation, food production, and stability.

Biochar is porous - which is why it is a master at absorption. Just grams of biochar have a surface area the size of a football field! This is highly beneficial for the fungi and bacteria that translate nutrients for the plant roots to feed from.  

Leave a note or email and we’ll get you started. Webshop opening soon!

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In a nutshell 

Biochar enhances soil fertility by retaining nutrients, water and providing a growth platform for good microbes. 

We focus entirely on making an excellent, pure biochar (~85% fixed Carbon content). We don’t sell anything else. We don’t use additives or chemical treatment aka no bad things.

Our customers are campuses, cities, urban areas and farms. Not just because we make the soils healthier in the long term - but especially because biochar helps the plants be more resilient to environmental stressors. We’re always looking for new test customers - ping us and let’s see how we can make your life easier!

California creates millions of tons of agricultural residues yearly. We use orchard waste and up cycle it into biochar.

Our production is efficient and local - the nut shells travel less than 50 miles from where they grew.


Every ton of CC biochar takes down three tons of CO2.

Increasing the soil carbon content helps the microscopic life that keep our soil alive. #Soilmicrobiome #CarboCulture

Culturing Carbon


We think that carbon should be taken down from the atmosphere and put to work where it is useful.

Our ultra efficient process technology has been developed for a decade in the university labs at the Hawaii Natural Energy Institute. Now it's time for a broader audience in this teenage technology's life!

Clean the air - heal the earth.

The nutcases 

California native and part Norwegian Chris knows that nature has most of the answers for bioengineering already.  Henrietta is from Finland, land of sisu (meaning "grit, perseverance").  Her last name Kekäläinen means burning ember.  

Dissatisfied with the status quo, the founders decided to bring the science to the next level.

Nordic heart, Californian start!