Can I use aluminum foil to wrap leftovers?

Yes, you can use aluminum foil to wrap leftovers. It is a common and effective method for storing food because it is airtight and prevents contamination. Aluminum foil helps to keep food fresh by protecting it from air and moisture, which can cause spoilage. It also makes reheating leftovers easy, as it can be used directly in the oven or microwave. However, ensure the foil is food-grade and avoid using it for acidic or highly acidic foods as it could react with the foil.