Can aluminum foil facing be used to wrap leftovers?

Yes, aluminum foil facing can be used to wrap leftovers. The reflective side of aluminum foil is often used for its heat-reflective properties in cooking, but it is also suitable for wrapping and storing leftovers. It provides a barrier to air, helping to keep food fresh and preventing freezer burn if used in the freezer. However, it's important to ensure that the foil is tightly sealed around the food to maintain its freshness and prevent contamination.