cannot remember where but I
read this the other day and it works like a charm. get a mason jar vacuum sealer $10
get a brake bleeder vacuum $15 put buds in a mason jar and pump it out to 500.
Airtight seal
i got no idea lmao. I have learned air and light are to big no'no's for storage, and this can be used for other than buds also ,just a cheap way of keeping air out of things