DENVER – The opening months of Colorado’s first-in-the-nation recreational marijuana industry have seen a rise in fiery explosions and injuries as pot users try to make the drug’s intoxicating oil in ...

A potent, syrupy extract of marijuana has become a popular way to ingest pot among young people, particularly in places where pot use has been... Marijuana 'Hash Oil' Explodes In Popularity, And ...

Dear Gene: You’re allowed to make concentrates that don’t require butane, like bubble hash, kief, QWISO hash from rubbing alcohol, and other concentrates extracted with water. As I’m sure you know, ...