I recollect in the mid seventies, we broke out the life rafts aboard ship for their (almost) annual inspection.I’ve been smoking pipes and cigars for years. Pipe tobacco is very easy to store - you just put it in a mason jar and screw the lid on. I’m working through some 2012 tobacco right now. I buy pipe tobacco when it’s on sale and shelf it. I probably have a lifetime supply for myself now.
Cigars are a little tricky because you need to keep them humidified to around 70% humidity.
I’ve vacuum sealed cigarettes before for a friend as an experiment. Vacuum sealed and sat on a shelf for 2 years. He said they were fine.
EDIT: you can age cigars and pipe tobacco like wine or whiskey. Some tobaccos improve with age, so it’s possible that even without SHTF you can sell your tobacco for a premium if you aged it correctly.
The First LT indicated we were gonna open the survival stores and replace them. That hadn’t been done before with ours and doubtful anywhere in the fleet. They’d been packed sometime in the early forties.
When we opened them, there were a couple sealed packs of cigarettes and matches. Some of the salty old guys fired them up and seemed to enjoy them. Unfiltered of course. They pronounced them smokable.
Who knew? (That’s a hella long time packed in a bag and a box over that with the whole thing exposed to almost forty years of some pretty harsh elements on deck...)