A safe checklist for when electricity returns: avoid surges, check food, reset appliances, deal with gas smells and reconnect slowly.
- Wait a few minutes, then reconnect appliances one at a time.
- Check food by temperature and time, not by smell; when in doubt, throw it out.
- If you smell gas, leave at once and call from outside.
The lights flicker on and everyone cheers. But the minutes and hours after power returns are when some of the most avoidable problems happen: surges damage electronics, spoiled food gets eaten and gas or water issues go unnoticed. A calm, step by step approach protects your home and your family.
Wait, then reconnect gradually
Power often comes back in fits, with flickers or short cuts. If every appliance is on at once, the sudden demand can trip your breakers or damage equipment.
- Wait a few minutes after power returns to see that it is stable.
- Turn on the main items one at a time, starting with the furnace or fridge, and leave other large appliances for later.
- Plug sensitive electronics back in after power looks steady, or use a surge protector.
- Wait about 15 to 30 minutes before reconnecting everything else, or longer if flickering continues.
Our guide on protecting appliances explains more about surges and what to unplug during an outage.
Check food in the fridge and freezer
Do not trust your nose alone. Official food safety guidance says a closed fridge keeps food safe for about 4 hours without power, and a full freezer holds its temperature for about 48 hours (24 hours if half full) if the door stays shut. Perishable food held above 4 degrees C (40 degrees F) for more than 2 hours should be thrown out. If you have a thermometer, check the temperature. Food in the freezer with ice crystals or that is still at fridge temperature or below can usually be refrozen or cooked.
- Discard meat, poultry, fish, eggs, milk, soft cheese, cooked leftovers and cut produce that were warm too long.
- When in doubt, throw it out.
- Do not taste food to test it.
The full details are in our fridge and freezer food safety guide.
Reset and inspect appliances
- Reset clocks, timers and smart devices.
- Check that the furnace, water heater and any sump pump restarted properly. If a pump or heater does not restart, call a qualified technician.
- Look at your breaker panel. If a breaker tripped, switch it off and on once. If it trips again, leave it and get an electrician.
- Check smoke and carbon monoxide alarms and replace batteries that have run down.
- Look at cords and outlets for burning smells, scorch marks or sparks. If you notice any, switch off the power to that circuit and call a professional.
If you smell gas
Gas appliances such as furnaces, stoves and water heaters can have pilot lights that went out during the outage. Follow the maker's instructions to relight, or call a technician if you are not sure. Never use a gas oven or stove for heat. If you used a generator or fuel burning equipment during the outage, make sure it is turned off, cooled and stored properly, and ventilate any area where fumes may have built up. See carbon monoxide safety.
Water, damage and downed lines
If you drained pipes in the cold, turn the water back on slowly and check for leaks. If a boil water advisory is in effect, follow it until your local authority says otherwise. Check the basement for flooding. If a sump pump stopped, look for damage; our guide on sump pumps and backup power may help prepare for next time. Stay far away from downed power lines and anything touching them, and report them to the utility.
Restock and review
Once things settle, refill water containers, recharge batteries, replace used food and note what worked and what did not. A few minutes of review now makes the next outage easier. Use the 72-hour checklist to restock, and file a report if your area still has problems; see alerts and outage reporting.
Quick answers
Why should I wait before plugging things back in?
Power can flicker or surge when it returns. Waiting lets you see that it is stable and avoids overloading circuits.
Can I refreeze thawed food?
Food that still has ice crystals or has stayed at or below 4 degrees C (40 degrees F) can usually be refrozen, but check official guidance for each food.