This had crossed my mind. What steps can I take to keep it all clean? I imagine the jar should be boiled before use. Keep the cap on once steeping. What else though? Since tobacco is organic matter, I can image microbes would love to hang out in that jar and have an orgy during the steep. PG, is somewhat antimicrobial from my understanding but is it enough to keep mold/bacteria under control during a long steep? Any tips on sanitation would be greatly appreciated.
The only things you have any control over, would mostly be the jars and any tools you use. Proper storage of the tobacco so it doesn't mold/mildew etc is probably in order also. I don't extract so more than that should come from the others that do.