Yes, you can use aluminum foil to wrap breads or pastries for storage or baking. Aluminum foil is a good conductor of heat, which can help to cook or warm food evenly. It also protects food from direct contact with air, which can help to prevent it from drying out. However, it's important to ensure that the foil does not come into direct contact with the food when baking, as this can lead to uneven cooking or burning. For storage, it's recommended to use a food-safe plastic wrap or airtight containers to prevent the food from absorbing any metallic taste from the foil.