I know jars are superior in most ways, but I always felt plastic was better because you can minimize the amount of air in the bag before u close it. Isn't oxidization the main factor to drying buds out? A bigger factor than the container being plastic of glass. I keep my buds in ziplocks with a boveda pack in each baggy. And I toss them all in a jar together. Its working as far as I can tell. My bud stays fresh. I have a gram of trainwreck that is 6 months old and its still soft and moist.