The freezer isn't cold enough
When you open your freezer and see that your food appears to be frozen, you may believe that everything is fine. However, not all temperatures are appropriate for your freezer, and if you don't keep it cold enough, you risk spoiling the food that is packed and stored inside its frosty chambers.
According to the FDA, your freezer should be set to 0 degrees Fahrenheit to keep food safe while preventing the growth of harmful bacteria. It's critical to use appliance thermometers to check the freezer's temperatures on a regular basis to ensure it stays at the proper temperature. Remember that if you lose power, you should always check to see if the temperature is still around 40 degrees Fahrenheit or less. If this is the case, your items are still safe to thaw, consume, or refreeze if necessary.