Marijuana 'Hash Oil' Explodes In Popularity, And Kitchens : NPR

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 liberalized. That has public safety officials worried, in part because making the substance can have explosive side effects.

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Marijuana 'Hash Oil' Explodes In Popularity, And Kitchens : NPR