DENVER – Alarmed by a rash of explosions and injuries caused when amateurs make hash, lawmakers in Colorado and Washington are considering spelling out what’s allowed when it comes to making the ...

What does butane have to do with recreational marijuana? And why does the 319-page law that made Minnesota the 23rd state to legalize marijuana ban the home extraction of cannabis concentrates using ...

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A study published in the Journal of Cannabis Research evaluated the impact of various oil-based extraction methods from cannabis plants. The researchers specifically used medium-chain triglycerides ...

DENVER (CBS4/AP) - Denver's city council postponed a vote Tuesday that could ban amateurs from using chemicals to extract hash oil. The process typically uses highly flammable gasses like butane to ...

A residential fire Wednesday was most likely caused by an explosion during illegal production of hash oil, Portland Fire & Rescue officials said Friday. Portland police arrested Christopher Ellett, 32 ...