What number should your fridge be set at?

Your refrigerator should be set at or slightly below 37 degrees Fahrenheit (3 degrees Celsius) to keep perishable foods safe and fresh. This specific temperature range is cold enough to inhibit rapid bacterial growth and food spoilage while keeping milk, meats, and leftovers safely chilled without accidentally freezing them. Meanwhile, your separate freezer compartment should be maintained strictly at 0 degrees Fahrenheit (-18 degrees Celsius) for optimal long-term food preservation.

To maintain optimal food safety, prevent bacterial growth, and maximize energy efficiency, your main refrigerator compartment should be set to 37 degrees Fahrenheit (3 degrees Celsius), while the freezer compartment must be maintained at 0 degrees Fahrenheit (-18 degrees Celsius). Setting the refrigerator colder than 35 degrees risks freezing fresh produce and beverages, while setting it warmer than 40 degrees enters the "danger zone" where harmful food-borne bacteria multiply rapidly. Many modern digital refrigerators display these exact temperatures on the control panel, while older dial models use numbers typically ranging from 1 to 5 or 9, where a middle setting represents normal operation. You can verify your settings are correct by placing a standalone appliance thermometer inside both compartments for 24 hours to confirm accurate temperature readings.