Keeping food safe in your fridge

And don't just rely on the pre-programmed settings—rather, enlist help from a refrigerator thermometer. Don't refrigerate leftover soup broth, tuna fish, cranberry sauce, or other foods in cans. Once a can is opened, residual metal on the rim can leach into food and leave a metallic taste. The USDA recommends using refrigerated leftovers within three to five days or freezing them for up to four months.