Canned food should be kept dry and cool, but it should not be subjected
to freezing.
_Dampness_ may corrode tin cans and metal lids of glass jars and
eventually cause leakage.
_Warmth_ may cause canned food to lose quality. Hot pipes behind a wall
sometimes make a shelf or closet too warm for storing food.
_Freezing_ may crack a jar or break a seal and let in bacteria that will
cause spoilage. If it does not damage jar or seal, freezing will not
make food unsafe to eat. To give food in an unheated place some
protection from freezing, cover containers with a blanket or wrap them
in paper.