By Jon Murray, The Denver Post
 
Denver city officials are moving to ban the amateur use of a risky hash oil extraction process that has resulted this year in dozens of home explosions statewide.
 
A new proposal backed by Mayor Michael Hancock’s administration would ban the home use of solvent-based hash oil extraction. It involves highly flammable compressed gasses, typically butane, in the extraction of oil from marijuana. An additional risk is that some users stock up on those gases in their homes.
 
Licensed grow houses and other business still would be able to use the gas-based process, given that they take myriad precautions required by state law.
 
But Denver’s restrictions -- among the first in the state -- would limit those seeking to extract hash oil without a license to using safer water- and food-based methods. Or they could just buy hash oil at a dispensary.
 
Want to read more? Head over to The Cannabist.