OregonLive.com | Butane hash oil blast rocks Beaverton apartment OregonLive.com Making hash oil using butane can be dangerous. For years, the activity was unregulated and underground, carried out by home producers who often misunderstand the risks. The gas, a cheap and flammable solvent, is used to extract tetrahydrocannabinol, ... Two men to face charges after hash oil explosion at Beaverton apartment |