Numerous ways are used to extract the purest oil from the hemp plant to make CBD. Some type of solvent must be used to extract oil. CO2 is considered to be a cleaner way of extraction leaving no residue, making it pure prior to isolating each compound.
CBD is one of the compounds found when isolation takes place. To isolate the CBD to pure oil, during isolation THC, other cannabinoids and terpenes are removed from the plant through a technique using CO2 solvent-based or hydrocarbon.
Distillation, or purification, must occur once the extraction has been completed. First is Winterization. This process eliminates lipids, waxes and other compounds left from the initial isolation process. An ethanol solvent is used to accomplish winterization.
Beyond winterization, a decarboxylation is required, whereby compounds are heated to a degree which activates their medicinal eventualities. Lastly, remaining material goes through a short path steam distillation process which purifies the CBD to its isolate state.
Third-party testing is used to ensure precise qualities such as purity, potency, taste, and color, meet specifications required for making phytocannabinoid-rich complete end products.