How Cold Should a Refrigerator Be?

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According to the University of Nebraska-Lincoln Extension, keeping the interior of the refrigerator below 4.44 degrees Celsius slows the growth of bacteria that causes foods to spoil. This keeps perishable items fresh and safe to eat for longer periods of time.

Food Freezes at 00 degrees Celsius

Food freezes at 00 degrees Celsius. Keep the interior of the refrigerator above 0 degrees C to prevent freezing. The University of Illinois Extension recommends keeping the interior of the refrigerator above 1.11 degrees Celsius.

Bottom Line

Set your refrigerator on the normal setting. Test the internal temperature of the refrigerator by placing a candy thermometer in a glass of water and sitting in the middle of your refrigerator. Allow to set for 5 to 8 hours. The University of Illinois Extension explains that the temperature of the water should read between 3.33 to 4.44 degrees Celsius for safe food storage.

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