How do you know whether that deli turkey or leftover stew in the fridge is still okay to eat? There’s always the sniff-and-cross-your-fingers-before-eating approach. Or you can do something more rational—namely set refrigerators to maintain a temperature of 40°F and keep track of the number of days the food’s been in there. The chart below shows you how long different refrigerated foods will keep. When it comes to the contents of your freezer, it’s more about taste than safety, since food that stays frozen will keep indefinitely.