If the tin is sealed just leave it as is if opened if you are smoking it in the near future the tin should be fine.What do you mason jar guys do about tins with a bigger diameter than typical jars?
That's what I do, just dump in the jar and seal it up tight. Even after several years the moisture level is still there as long as the seal is good. I've even read about some people dipping the lid in wax to provide and extra seal.So... how do you get the humidity within an acceptable range? Just store it wet and dry box it before you smoke?