variation. divergence among individual animals of a group. The differences in the morphology or function of an organ or organism, are small enough to stay within the variability of the type organism or organ.
According to the Food and Drug Administration, your fridge should be set at or below 40 F (4 C). Your freezer should be set at 0 F (-18 C). Food stored in the freezer at 0 F will remain safe indefinitely, although the quality will decrease the longer the food is in the freezer. Freezing does not change a food's nutritional value.
Turns out the temperature at which food freezes and the freezer temperature it should be stored at can be two different things. Even if your freezer seems to be doing its job, you should know the correct temperature to set it to! Kitchen Fact: The ideal temperature range for your freezer is 0Â° Fahrenheit or below (-18Â° Celsius or below). Food stored at 0Â° Fahrenheit or below is safe to eat indefinitely (although quality and taste may be compromised after a while). While many foods will freeze at about 32Â° Fahrenheit, they need to be stored at 0Â° Fahrenheit to slow down deterioration, so colder is better. And don't worry about freezer burn with really cold temperatures â it's caused by exposure to air, not temperature.