The term hash oil is used by illicit drug users and dealers but is a misnomer in suggesting any resemblance to hashish.
Hash oil is produced by extracting the cannabinoids from plant material with a solvent. The color and odor of the resulting extract will vary, depending on the type of solvent used. Current samples of the oil, a viscous liquid ranging from amber to dark brown in color, average about 15 percent THC although it is frequently as high as 50.9% according to the DEA.
The tetrahydrocannabinol (THC) content of the oil varies tremendously since the manufacturers use a random assortment of marijuana plants and preparation techniques. Dealers sometimes cut their oils with other oils.
In terms of its psychoactive effect, a drop or two of this liquid on a cigarette is equal to a single “joint” of marijuana.
Hash, or marijuana oil, can also be known as hashish oil, butane/butane hash/honey oil (BHO), cannabis oil, liquid cannabis, hemp bud oleoresin, wax, or simply a dab is an oleoresin obtained by extraction of marijuana and/or hashish. In an industry that is not carefully monitored or have strict standards changes happen quickly.