A cooler works, but don't expect miracles.

Yes, you can use a cooler as a temporary fridge, but only if you manage the ice situation carefully and don’t open it every five minutes. A good cooler with thick insulation will keep food cold for a day or two if you pack it right — pre-chill everything, use block ice (it melts slower than cubes), and keep the cooler in the shade or a cool room.

The problem is that coolers aren’t refrigerators. They don’t actively remove heat. Your food might stay safe at 40°F for maybe 24 hours, but after that you’re gambling. If you’re facing a long outage, you’re better off using the cooler as a backup for the most perishable items (dairy, meat, leftovers) and eating through them first.

Don’t bother with the cooler for condiments or drinks that don’t spoil fast. Use that space for stuff that’ll actually go bad. And if the power’s out in winter? Just put stuff on the porch or in a snowbank — that’s a free fridge right there.

But if you’re relying on a cooler for more than two days, you need a real plan — dry ice, generator, or just eating everything before it goes.