How Cold Should a Refrigerator Be?

Proper storage in the refrigerator keeps food safe.

Keep Temperature Below 40 Degrees Fahrenheit

According to the University of Nebraska-Lincoln Extension, keeping the interior of the refrigerator below 40 degrees Fahrenheit 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 32 Degrees Fahrenheit

Food freezes at 32 degrees Fahrenheit. Keep the interior of the refrigerator above 32 degrees to prevent freezing. The University of Illinois Extension recommends keeping the interior of the refrigerator above 34 degrees Fahrenheit.

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 38 to 40 degrees Fahrenheit for safe food storage.

References

• University of Nebraska-Lincoln Extension: Cook it Quick!
• University of Illinois Extension: Meat Safety for the Consumer