The recommended temperature for a freezer is at or below 0°F (-18°C) . This temperature is ideal for keeping food frozen and preserving it until it is ready to be cooked or reheated. However, the temperature may need to be adjusted by a few degrees to account for factors like location, humidity, or outside temperatures. It is important not to set the temperature colder than necessary, as this can cause vegetables to lose their freshness. To ensure safe and proper food storage, keep your freezer temperature at or below the recommended range of -18 degrees Celsius (0 degrees Fahrenheit) .