A crack in your deep freeze more than likely means it is time to buy a new freezer. Freezers are complicated appliances which often have toxic substances floating through their pipes. A substance like freon is not something that you want on your food. If you see a crack, call a repairperson and have him or her take a look. If it is indeed a fatal crack, contact your area's garbage department
. to learn the most environmentally-friendly way to dispose of the freezer. If you are in the market for a new freezer, be certain to look for an energy-efficient model.