Scrape off any gel-y or fuzzy looking crud, and then run it through the cannabutter washing technique as if it were fresh. Stickied at the top of 'edibles'.
I wouldn't personally want to eat it, but if you do decide to eat it, 'wash' it first and make certain you have brought it to a temperature high enough to kill bacteria before re-freezing.
stinkyattic Reviewed by stinkyattic on . Eating 'mature' Cannabis Butter? I've got some cannabis butter that's been in the freezer for about 8months and has a mouldy substance on top of it and the whole thing smells a bit, well, cheesy. Would I be Ok to just scrape the stuff off and give it a rinse under the tap or am I risking serious food poisoning? There's a fair bit of butter and it's really good stuff, so i'd be loathe to throw it away, and I'm thinking that it's going to be heated pretty hot in the pan when I melt it anyway - plus each portion that's Rating: 5