According to the United States Department of Agriculture (USDA), the ideal temperature for a freezer is 0 degrees Fahrenheit (-18 degrees Celsius) or below. This ensures any bacteria present in the food will not grow and multiply, keeping the food safe to eat for longer periods of time.
You can always err on the safe side and lower the temperature below 0°F—your freezer can never be too cold. “Most recommendations are for a range of temperatures but in reality, there is no temperature that is too low for freezers,” says Tetro. “Most freezers do have a lower limit of around -10°F (-23°C).”
The temperature of a freezer should be set at 0 degrees Fahrenheit so everything stays very cold.
To store frozen foods at best quality, keep the freezer set to maintain zero (0 °F or -17.8 °C). Some combination refrigerator-freezers cannot keep the freezer air that cold. As long as foods are solidly frozen, they will stay safe.
“Keep your appliances at the proper temperatures. Keep the refrigerator temperature at or below 40° F (4° C). The freezer temperature should be 0° F (-18° C). “
Frozen food is typically safe to eat indefinitely if your freezer stays at or below 0°F (-18°C). However, if your freezer is running too cold or there's a fluctuation in temperature, this may cause freezer burn. Check for ice crystals on the outside of food.
The ideal temperature for most household freezers is 0°F (-18°C) or lower. At this temperature, food can be safely stored for an extended period without compromising its quality.
The recommended freezer temperature to keep food safe is at or below 0°F (-18°C), making higher temperatures less reliable for long-term freezer storage. However, freezer temperatures may need to be adjusted by a few degrees to account for factors like location, humidity or outside temperatures.
Keep your freezer temperature at or below the recommended range of -18 degrees Celsius (0 degrees Fahrenheit) to ensure safe and proper food storage.
Whilst it is recommended to keep your freezer below -18 degrees Celsius, it is important to not drop the temperature too low. Although 4-star freezers can operate down to -25°C, over time foods frozen at this temperature may start to dry out, causing freezer burn or a loss in quality.
But whatever you put into your fridge carries lurking microbes that, if left in the wrong environment, can cause bad fridge smells and bacteria. So what temperature is the right temperature? The Food Standards Agency advises household fridges to be set at 5 degrees Celsius or below.
Be sure to check the electrical outlet, thermostat and airflow around vents. Cooling problems can also be caused by dust on condenser coils, faulty gaskets, clearance space around the refrigerator, a broken or stuck condenser fan or a faulty circuit board.
Freezer burn happens when frozen foods are exposed to cold, dry air, which causes them to dehydrate as the outer layers lose moisture. One of the most commonly recognized signs of freezer burn is the formation of ice crystals on the outside of food, making it appear frost bitten.
Temperature Affects Ice Production
The Refrigerator and icemaker must be at proper temperature. The recommended fresh food temperature is 37° Fahrenheit; the freezer recommended temperature is 0° Fahrenheit. The icemaker must reach about 16°Fahrenheit before a cycle will begin.
That's because cold temperatures reduce, or even stop, the growth of bacteria. So, although still cold, higher temperatures can allow bacteria to grow. It's therefore better to lower your freezer to -18°C. At this temperature, bacteria growth is stopped, preventing illness or food spoilage.
The temperature selection on a Chest Freezer is made by setting the dial from ONE to SEVEN, with SEVEN being the coldest. The normal safe freezing level is obtained by setting the control on FOUR. Turning the temperature control all the way to the left to the OFF position will turn the power off to the compressor.
Frost or ice build-up on freezer walls can be one of the signs your freezer is too cold. First, check the temperature setting to make sure it's within a degree of 0ºF (-18ºC) and adjust accordingly. If you notice ice crystals on frozen food, these items may be freezer burned due to colder or fluctuating temps.
The U.S. Food and Drug Administration (FDA) recommends that your refrigerator temperature should be at or below 40°F, and your freezer temperature at or below 0°F. However, the ideal refrigerator temperature is actually lower. Aim to stay between 35° and 38°F (or 1.7 to 3.3°C).
Freeze occurs when the temperature drops to 32°-or-lower. A freeze will damage many unprotected plants, especially if the temperature remains at-or-below freezing for several hours.
Maintaining the proper freezer temperature of -18°C (0°F) is crucial for food safety, quality, and energy efficiency. By understanding the ideal temperature range and following the tips in this blog, you can ensure your frozen foods stay fresh and safe for consumption.
Defrost food in the fridge to prevent it sitting in between 8 - 63°C, which is the Danger Zone. Between these temperatures the bacteria may grow and make you ill.
Upon initial installation or when the settings on the temperature controls are changed, it usually takes 24 hours for an upright or chest freezer to reach the proper temperature.
Ideally, your freezer temperature should be set at 0 degrees Fahrenheit. Maintaining this temperature not only prevents food spoilage but also helps you identify and address issues like frost buildup or temperature fluctuations, ensuring your frozen goods stay in top condition.
Freezer - Refrigerator Temperatures
Eat those foods as soon as possible for best quality. Use a free-standing freezer set at 0 °F or below for long-term storage of frozen foods. Keep an appliance thermometer in your freezing compartment or freezer to check the temperature.
If the environment is too cold, the freezer may not get sufficient run time to maintain its temperature. If the temperature is too warm, the appliance will have a hard time getting the interior down to the desired temperature. Dirty condenser coils or a broken fan motor can also cause insufficient freezing.