Power outages threaten food safety—here's what to save or toss
A power outage can quickly turn stored food unsafe to eat. Without electricity, refrigerators and freezers lose their ability to keep perishables at safe temperatures. Knowing which items to keep or throw away helps prevent food poisoning.
When the power goes out, refrigerated food stays safe for roughly four hours if the door remains closed. Opening it lets warm air inside, speeding up spoilage. After four hours, high-risk items like raw or cooked meat, poultry, seafood, eggs, milk, and many leftovers should be discarded.
A full freezer keeps food safe for up to 48 hours during an outage, while a half-full one lasts about 24 hours. If the temperature inside rises above 40°F (4°C) for more than two hours, most frozen food should be thrown away. Refreezing thawed items may lower their quality and increase health risks. Some foods can be saved after a power cut. Hard cheeses, butter, uncut fruits and vegetables, and many spreads and sauces often remain safe. When in doubt, checking the temperature with a thermometer is best. If food feels lukewarm, it’s safer to discard it rather than risk illness.
Food left in the Danger Zone—above 40°F (4°C)—can develop harmful bacteria rapidly. Following these guidelines reduces the chance of food poisoning after an outage. Proper handling ensures that only safe, high-quality food is consumed once power is restored.
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