Ditto Tartan. Living down here at the Gulf with all the humidity, bread molds fast (a/c or not). Doesn't take that long to thaw. Overnight works just fine. We go through a lot of bread. I've cut back. I was given a solid loaf around the holidays. The bread maker told me to go ahead and slice if I wanted before freezing. But always use a very sharp bread knife to cut. They're usually serrated.