According to multiple sources, including the United States Department of Agriculture (USDA), the recommended temperature for a freezer is at or below 0°F (-18°C) . This temperature ensures that food stays frozen and safe for long-term storage. However, its important to note that freezer temperatures may need to be adjusted by a few degrees to account for factors like location, humidity, or outside temperatures. Its also recommended to use an appliance thermometer to find the ideal temperature for your freezer and check it regularly to make sure it stays constant.