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.
You should keep your fridge temperature set at 3Â°C/37.4F and your freezer set at -19Â°C/-2.2F (or -18Â°C/-0.4F, depending on your model) all year-round. Note: the power cool and power freeze functions should only be used when large quantities of fresh food are placed in the fridge or freezer (such as when you're storing the week's grocery shopping).