The recommended temperature for a freezer to keep food safe is at or below 0°F (-18°C) . However, the temperature may need to be adjusted by a few degrees to account for factors like location, humidity, or outside temperatures. The typical factory setting for a freezer is 0°F (-18°C) . It is important to keep the freezer temperature at or below the recommended range of -18 degrees Celsius (0 degrees Fahrenheit) to ensure safe and proper food storage. If the temperature is set too high, it may not be reliable for long-term freezer storage. It is also recommended to place an appliance thermometer in the freezer to make sure the temperature stays constant.