I don't worry too much if the tobacco is dry. I put it into a cigar humidor and watch it pretty carefully (once a week is careful enough for me) and let it rehydrate slowly. I found that aggressively moistening the tobacco (putting water on it) dilutes the flavor while the slow rehydration works well. Whatever works for you is fine.
Pete
Tnx. My humis are all at capacity at the moment, but I can stick a boveda in the jar.
You oughta know not to stand by the window, somebody see you up there.