BHO Extraction Skunk Pharm Research
Mar 07, 2012 BHO Extraction. Butane Honey Oil, or BHO, is the essential oil from the cannabis plant, extracted using Butane as a solvent. It can be extracted from fresh material or from cured material as a Concrete or an Oleoresin. A concrete or an oleoresin that has been winterized to remove the waxes, lipids, and fats, is known as an Absolute.