I opened a jar of capstan blue today to find mold growing on one of the flakes. I cannot find any recent posts about this so I am seeking advice. I threw out the flakes and washed the jar in the dishwasher. Should I reuse the jar? What could have caused this and what should I do to prevent it in the future. And before anyone's asks / no it was not bloom. It was nasty fuzzy smelly mold. i have only been smoking a pipe for around 9 months but have been buying a good bit of tobacco to cellar but certainly don't want a bunch of jars full of moldy tobacco so any insights would be appreciated.