There are several procedures to extract CBD-rich oil from the cannabis plant. Methods that use neurotoxic solvents such as butane (BHO), propane, hexane, or other hydrocarbons can leave unsafe residues that interfere with immune function, preventing healing.
The following are considered safe removal procedures:
Favicon the cannabis web Extracritical or subcritical CO2 extraction. It uses carbon dioxide at very low temperature and high pressure. The end product is powerful, although the method requires expertise and expensive equipment.
Favicon the cannabis web Ethanol extraction. It uses ethanol (food grade), a safe solvent, and homemade equipment. On the other hand, vegetable waxes that can promote health benefits are destroyed.
Favicon the cannabis web Extraction with olive oil. Exposure to organic solvents is completely avoided. It is a low-cost method but the product obtained is perishable and must be stored in a cool and dark place.