Re: shisha goes bad when?
First off, welcome to HookahPro!
As a general rule, an unopened container should last about two years. Although it can be longer.
Even if it's old and dried out, it can sometimes be 'brought back from the dead' with a little work.
Cabinet or fridge, doesn't seem to matter. Your choice.
FroYo = Phatt Azzd Kaloudz Yo!