like akm said, glycerin is a good way to go. it rips the cannabinoids off really well. a lot slower than butter with a little heat does, but easier too. just grind up some good stuff, throw a little hash or kif in there if you want to bump it up a little, and then cover it with minimal glycerin. just enough to fully saturate your powdery mix. put this in a cool dark place, like in the back of your closet or under the bed, for as long as possible. the ferret does this for a week or two, and shes heard of even a month.
when the ferret tried some 8x brownies, she struggled for a good hour, and than afterwards, passed out for like 6 hours during the middle of the day. she likes to have high doses, but this was too much, sleep isnt as enjoyable as struggling faded all day... also 8x means for 8 people hahahaha. the lady at the medical club told the ferret that she will probably vomit if she ate the whole thing, sooo she ate the whole thing. no sick, just sleep.