how long do shrooms keep?

they should stay good for quite a while, as long as they are already dried.

 

i have some dried shrooms vacuum-sealed in a mason jar from last summer that I fully expect to still be be good.

 

fresh ones, however, go bad much quicker, will rot if in a plastic bag, etc.

 

Yeah If there properly dried and sealed they could last at least a year. But I mean if there dried and you got um in a zip lock bag i would try to eat them within a couple months.