I've noticed that some of my stash gets a certain smell after a while that I'm afraid may be onset of rot. Noble rot perhaps? I threw away a couple Zs of Nevs Mango because the buds had visible mold fibers. It never happens to weed that I line dry during winter, so I should probably dry my herb better before I jar it. Vacuum bag sealer would work but mine crushes buds even at the low vac setting. Maybe I'll go back to ziplocks. Yet another retro element of that 70s weed I seek.Every time I have used sealed jars my weed rotted on me. No matter how dry the stems were. I have talked to a lot of people that have had the same experience. I have stored weed in zip lock baggies for many years that never went bad on me. Dunno why that is, but that's my experience.