RSO Rick Simpson oil
Rick Simpson Oil, or RSO, is a full extract cannabis oil meant to be taken orally or applied topically. RSO is a marijuana extract made utilizing a solvent to extract cannabinoids. The most common solvent used to produce RSO is grain alcohol, but some other solvents like ethanol or butane are sometimes used. Flower (bud) material is placed in a large container and alcohol is added. The entire mixture is stirred and crushed into the alcohol. After a time, the alcohol is drained from the remaining plant material. That mixture is then heated in a container, such as a rice cooker, so that the residual alcohol evaporates. The end product is a high potency oil often dark in color with a thick consistency. RSO can be siphoned into a syringe style applicator for dosing which offers the advantage of a long shelf life as oxidation does not easily occur.
Typically, a single syringe of RSO contains around 600 mg of THC; however, this is dependent upon the source material used. Traditional RSO is made from indica plants that are high in THC; however, any strain can be used to make RSO. The final results will depend upon what strains were used and the moisture content of the plants themselves. The strains used also account for the color and consistency of the oil. Some plants result in a light amber color with a viscous consistency while others have a darker, thicker consistency. In some cases, other portions of the plant, such as fan leaves, are used in the mixture so as to get the maximum amount of cannabinoids from a crop. This will cause the end product to have a more astringent taste and darker color as well.