Medical content reviewed by Dr. Joseph Rosado, MD, M.B.A, Chief Medical Officer
CO2, or carbon dioxide in its liquid form, is an element used to extract active compounds from cannabis plants. Cannabis concentrate made using CO2 is commonly referred to as CO2 oil.
Under this umbrella, there are several sub-categories of concentrate such as CO2 hash oil, shatter and CO2 wax. To make CO2 oil, producers soak the cannabis plant in liquid CO2, this allows the carbon dioxide to strip the plant of its cannabinoids. Once the chemical process is complete, the plant matter is removed and pressure and heat are manipulated in order to vaporize the CO2.
A potent concentrate of pure cannabis extract will be left behind. The resulting product is then used in the treatment of various medical conditions. The use of CO2 in cannabis extraction is highly beneficial for a number of reasons: