I don't mean to start another big williams shave soap thread debate. I have a simple question. Do you leave the puck of soap just dry out in the cup when your done with it or should some other sort of care be taken like washing it off? Not sure if it really matters I just used it for the first time today to make a super lather and put it away wet. Figured worst case it's only a buck and I have another one anyways.

Question seems a little silly to be asking but I'm just not sure and don't want to wait and see what happens.