Exposure to humidity or air decreases shelf life. If packaged correctly, foods stored at temperatures below 60 F maintain good quality for about one year. The main concern with perishables is when electrical power is unavailable. When the power goes off, and you have no idea when it will be back, then it's time to think food safety. The key to determining the safety of foods in the refrigerator and freezer is their temperature.
F cause most food-borne illness.
Keep the refrigerator and freezer doors closed. Open the refrigerator as little as possible. Every time you open the refrigerator door, cold air escapes. Refrigerated items should be safe as long as the power is off no more than about 4-6 hours. These foods can be refrozen or cooked and eaten.