I'm blessed sufficient to have accessibility to a number of really hot, dry areas at my office. So it simply takes 24 hours to obtain my bread pieces bone dry. In your home, this may take rather a few days. You can always pop them onto a tray and keep them airborne cupboard.
My individual choice is to after that fish an item of bread crust in between 1-4 inches off the bottom. Relied on together with a feeder or just some shot on the line, crust is a fatal chub lure. With a couple of modifications to bait and also hook size, it can then be used for cockroach and even barbel. Give it a go this winter months.