Is there any way to permanently preserve hash? Sometimes I find SUCH insanely good ones that are better than any drug I know all on their own. I buy large amounts to stockpile but it always goes bad, no matter what I do. I've taken such insane steps. The best I've found so far is wrapping them in baking paper, then in foil, then in airtight bag, in an airtight glass jar in the fridge. But even then it goes bad in 2-3 months.