Critical Solutions

Supercritical CO2 Fluid Extraction machines built with pride in Northern California

Why Critical Solutions?

Carbon Dioxide, CO2, is the cleanest and safest solvent when it comes to extracting essential oils from botanicals.

It's so pure that the FDA has rated CO2 as "generally recognized as safe (GRAS) as a direct human food ingredient". Our Supercritical Fluid Extraction (SFE) system is the most efficient way of using CO2, by manipulating the pressure and temperature of it in a closed-loop. The operator has the ability to selectively extract desired compounds from a material before the CO2 is allowed to outgas, leaving behind virtually no residual solvents. For this reason, it's the best choice for applications where flavors or aromas need to remain un-altered (as in pefumes or flavorings), or where purity is paramount (as in plant-derived pharmaceuticals). CO2 is far superior to other solvents which cannot even approach the same purity levels and tend to leave behind off-odors and flavors.

Product image

Hand-built, elegant classics

We have a team of dedicated engineers and technicians who not only build these machines to very exacting standards, but also constantly test new products and techniques to try to build even better ones!

You'll notice our vessels and heat exchangers are insulated; it's more work, but it makes our systems more efficient and more stable in varying ambient conditions. We use only the highest quality valves, gauges, and fittings; they cost a bit more, but we don't mind because our machines are built to last.

Product image

Key Features

  • Closed-loop system runs on compressed air
  • No electrical components on skid
  • Scalable vessel jackets and heat exchangers utilize central water heater and chiller
  • A single operator can quickly harvest, decharge & recharge