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Carlisle, PA
reply to Mr Matt

Re: Using Dry Ice for Cooling backup for refrigerator?

You could also make the fridge as cold as it will go the night before.
You also have to watch the temps of the food inside and make sure it doesn't get too high or you can cause things to grow. This all depends on the air temperature.

Our fridge shows its temp on a display. This summer we had an hour outage and without me opening the fridge but once the temp was already 40 degrees in the fridge and near 0 (we keep it at -2) in the freezer. The inside of the house was about 75 or 77 when that happened.

You could either do the dry ice or pick up one of those under $100 Harbor Freight 900 w 2 stroke generators. Not a lot of $$ and it could help in the future with power outages.