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One of the most basic ways to ensure food safety in your kitchen is to set your refrigerator and freezer to safe temperatures for food storage. According to the Food and Drug Administration, your fridge should be set at or below F (4 C). Your freezer should be set at0 F (- C).
Food stored in the freezer at0 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.
The FDA recommends the "two-hour rule" for leaving items needing refrigeration out at room temperature.
According to my knowledge it should be set at -C