I put the material (leaf/ trim) in a glass mason jar same kind used for curing ganj. Put my iso from the freezer in shook for 25-30 seconds and it went in my glass casserole dish (labeled pyrex). Evaped in the dish and purged in same dish with hot water. Nothing of difference from my other batches except the iso. JW could trim leaves from a year ago that were vacuum sealed and frozen, could they cause this issue? I highly doubt it, it just seems like a 5% chance to me that it could have been cuz I added maybe a half handful of this trim I figured since it was the same strain and everything that my boi grows every year it wouldn't be an issue. Apparently he saved that trim for me and I just forgot to get it and hes forgotten to give it to me.