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 perfumes 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 unwanted solvent odors and flavors.