do you have to cook or heat BHO to get the last remaining butane from it after you extract it?
ive just used the thermos flask method and its worked a treat.
Full Version: BHO is it nesessary to cook it after extraction?
if you put it in the freezer for half an hour or so then take it out and thaw it this purges the last of the butane, do this a few times 
nice one , thank you robert plant. 
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