While aluminum foil facing can be used as a temporary solution for storing leftovers or dry goods, it is not recommended for long-term storage. Aluminum foil facing may contain chemicals or coatings that are not food-safe, and it can also react with acidic or alkaline foods, potentially leaching harmful substances. For safe and long-lasting storage, it is best to use containers specifically designed for food storage, such as glass or food-grade plastic containers with airtight seals.