Assuring Safety in a Power Outage
Keep refrigerator and freezer doors closed as much as possible.
Discard any potentially hazardous foods such as meats, eggs, dairy products and leftovers when the power has been off for more than four hours. When in doubt, throw it out.
Frozen foods in a freezer can normally be kept up to 48 hours without power. A frozen product that has thawed should not be refrozen—it should be used immediately or thrown away.