Why CO2 rocks

Carbon dioxide capture from combustion and CO2 direct air capture ​from the atmosphere are at a technology readiness level where they ​need storage now. But transporting this CO2 has a pipeline problem.

Once carbon dioxide is removed from air, it needs to be injected deep ​underground in depleted oil and gas wells, or sandstone, salt ​reservoir, or volcanic rock formations. But these underground sinks ​are not always located where CO2 can be efficiently captured.

The pipelines proposed to transport this CO2 from capture point to ​storage wells often face public backlash, long permitting periods and ​use of eminent domain. CryoCellar can enable shallow underground ​storage in produce fields, with technology that turns CO2 into rocks.

This process has agricultural co-benefits that allow CO2 to be put to ​work for humanity, rather than burying the CO2 deep underground.

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What s special about Nesquehonite
Carbon dioxide tank
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Charged carbon ​catalyst

Magnesium ​Chloride Brine


Pure Phase CO2


  • Nesquehonite is fast-forming and stable at pH under 2.7 and temperatures up to 207 F.

  • The resulting 1/4in. rocks have a high surface area, functioning to improve soil aeration ​and water holding capacity, making roots more resilient to drought, floods and disease.

  • This extremely cold reaction enables off-grid produce cooling, which improves shelf-life.
Farm With us

Fast off-grid ​Cooling without ​Power or water

Forced air cooling system ​enhanced with cryogenic ​CO2 mineralization.

Each hour of pre-cooling ​can add an additional day of ​produce storage life

ease of use

Nesquehonite does not ​retain any salinity through ​an onboard washing cycle. ​It is applied with a fertilizer ​spreader or seed drill.

custome​r success ​model

Cryocellar will supply both ​CO2 and mineral brine to ​farms purchasing the mobile ​mineralization reactor This ​enables annual 45Q carbon ​capture and storage tax cre​dits or pre-market pur​chases of future carbon r​emovals t​o third parties.

Field Trial ​results

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Tech Pattern Concentric Irregular Rings
15 25 increased apple rootstock biomass
1 25 1 6F degree cooling min
cooling sweet peas for gerber baby food
Buy Credits
Soil Thermometer. Female Agronomist Measuring Soil Temperature
  • Direct weighing of nesquehonite
  • Measurement of unconverted CO2
  • Measurement of CO2 in soil gas
  • X-ray diffraction spectrometry
  • Volumetric calcimetry

Measurement ​reporting and ​verification

  • 0.4 lbs of CO2 ​captured per lb
  • of nesquehonite

hydrochloric acid solution in glass

Lifecycle ​Assessment

We are currently ​undertaking a Lifecycle ​Assessment Study of ​magnesium chloride ​brine and the transport ​and of hydrochloride to ​companies for


Retail Store ​carbon insets

Decarbonize your fresh ​produce supply chain by ​working with farms storing ​carbon by making and ​applying nesquehonite in ​their fields, orchards and ​vineyards.

Plant with Fertilizer over Soil Background
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