SHO (Solventless Hash Oil)
Definition: SHO, short for solventless hash oil, is a cannabis concentrate made without butane, propane, or other chemical solvents. It’s typically produced by pressing kief or bubble hash between heated plates, which melts the resin into an oil. Today it’s more commonly called hash rosin.
How Is SHO Made?
First, trichomes are separated from the plant by dry sifting (making kief) or ice water extraction (making bubble hash). That hash is then loaded into a fine mesh bag and pressed in a rosin press. Heat and pressure liquefy the resin and push it out as an oil, leaving plant matter behind in the bag.
SHO vs. BHO
- SHO: made with heat, pressure, and water only; no residual solvent risk; often prized for flavor
- BHO: made with butane; efficient at scale; must be purged and tested for residual solvent
How Do You Use SHO?
Like other concentrates, SHO is usually dabbed, vaporized in a wax pen, or added to flower. It’s potent, so start with a rice-grain-sized amount.
For more on making solventless concentrates, see our entries on solventless extracts and rosin.
Related terms: Rosin, Solventless Extract, Rosin Press, Concentrates
Sources: NIDA: Cannabis Concentrates DrugFacts.
