Will I be ok storing bagged tobacco in large jars? I got a couple large jars, 1 gallon size, with screw on lids, they seem to be pretty air tight Can't smell the tobacco with the lids on. I keep my english blends in one, armoatics in another, and I have another with VA's, CH, SWR etc. I am wondering if I run the risk of cross contamination of the bagged tobaccos in the jar? I guess mostly in the aromatics jar?