Power out? Refrigerator and freezer food-safety questions
Keep the doors closed and write down the time. Decisions about food need a timeline, not a guess about whether the fridge still feels cool.
How long can the doors stay closed?
FoodSafety.gov gives a general guide of about four hours for an unopened refrigerator, about 48 hours for a full unopened freezer and about 24 hours for a half-full unopened freezer. These are not guarantees for a warm room, an already-warm appliance or a door opened repeatedly. Record when the outage began and minimize opening.
Can I judge food by its smell?
No. Never taste food to decide whether it is safe. Read the official food-by-food chart, especially for meat, seafood, dairy, eggs and prepared leftovers. Different foods have different discard rules.
What if frozen food still has ice crystals?
The official guidance allows some frozen foods to be refrozen or cooked if they still contain ice crystals or are at 40°F (4°C) or below. The chart includes exceptions and quality notes. Use a food thermometer where directed, not an estimate from touching a package.
What if the power is back already?
A cold appliance now does not reveal how warm food became earlier. Use the timeline and any thermometer evidence you actually have. If you cannot establish safe conditions for a perishable item, do not gamble on it.
Keep the official chart available before the next outage. Do not use a generator inside a home, garage or enclosed space; this article does not cover generator installation or electrical repairs.
Keep a time-and-temperature record
Outage start: Write the time the power stopped and keep the doors closed.
Appliance context: Record refrigerator or freezer, and whether the freezer was full or half-full. The unopened estimates below depend on that distinction.
Food decision: Use the official food-by-food chart and actual thermometer evidence. Cooling again does not reconstruct the earlier temperature.
Sources and limits
This is an editorial summary of the guidance below, not a report of hands-on testing. Your exact model’s manual takes precedence for care procedures.