Description : Why should our freezers be set to 0*F?
Last Answer : So it stays frozen all the way through. When the freezer is set to 20 F, and you put something dense in there, (like a casserole) it will take a long time to thoroughly freeze. And while it is freezing, ... and getting them in the freezer at home, a bit can thaw, if the store had it at even 10 F.