CBD extraction methods
There are three common methods for producing CBD oil:
Supercritical CO2 Extraction
Using high pressure carbon dioxide to maintain a cooler temperature during the extraction process, this method delivers the purest CBD oil whilst preserving all the beneficial qualities. While this is the most reliable method, it is also the most costly.
Ethanol or Isopropyl Alcohol
This process involves the whole plant soaked in solvent/alcohol before any ethanol is evaporated so only the oil is left behind. Though this is the least expensive way of extracting CBD, the method includes evaporating the alcohol through burning, which may damage the beneficial elements of the plant itself. There is also the potential that any THCA within the plant will be converted to THC. When THCA (the raw compound in Cannabis) is heated to more than 70 degrees it becomes THC which is the psychoactive element.
Carrier Oil Extraction
Using hemp seed or olive oil to make CBD (or other oils such as coconut or olive), this method is extremely effective at extracting the cannabinoids, although they are also used to dilute stronger CBD products (caution: oils made with neurotoxic solvents may result in unsafe residues, impeding the immune function and beneficial qualities. In the absence of regulation, it is important that you trust these companies and the information printed on the product label).