After the power returns there are two questions, and they are easy to tangle. One is whether what is inside is still safe to eat. The other is whether the refrigerator is cooling properly again. Settle the food question first, because it runs on a clock that started when the power went off.
The Food Rules, in Plain Numbers
These are the standard FDA and USDA figures, and they are based on time and temperature rather than appearance:
- An unopened refrigerator holds food safely for about four hours.
- A full freezer holds roughly 48 hours; a half-full freezer roughly 24.
- Refrigerated perishables above 40°F for more than two hours should be discarded.
- Frozen food that still has ice crystals or reads 40°F or below can be refrozen, though texture may suffer.
- Never taste food to decide, and do not judge by smell. Harmful bacteria do not announce themselves.
The most useful habit is to keep an appliance thermometer in each compartment. After an outage it tells you what actually happened, rather than what you hope happened. Keeping the doors shut throughout is the single biggest factor in what survives.
Then Check the Appliance
Listen for the compressor and the fans, and check the display has come back to your normal settings rather than a default or a demo mode. Give it several hours to pull the cabinet back down before judging temperatures, especially if the doors were opened during the outage.
Signs the Outage Left Damage
Surges and brownouts sometimes take control boards and compressor start components with them. Worth acting on: the appliance not restarting at all, a display showing nothing or a fault code, a compressor that clicks every few minutes and stops, or a cabinet that never gets back down to temperature after a full day.
If it comes back on but never reaches temperature, do not keep reloading it with shopping. Book a Maytag refrigerator repair and say how long the power was out and what the thermometer read afterwards.