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, ...

Call it what you want, hash, also known as cannabis concentrate, is one of weed’s most misunderstood byproducts. Hash has been popular for thousands of years, but I didn’t try concentrates for the ...