Power out: protect the cold you already have
- Write the outage start time. Do not rely on memory later.
- Keep refrigerator and freezer doors closed. Use shelf-stable food instead.
- Use the conditional windows. About 4 hours for a closed refrigerator, about 48 hours for a full closed freezer and 24 hours for a half-full closed freezer.
- Move refrigerated perishables only if you can hold 40°F or below. A cooler without enough ice does not stop the clock.
Planning summary from current CDC and FoodSafety.gov guidance. Check the official item chart and local notices.
