Welcome to OKorder.com!
No, aluminum foil should not be used to make a sandwich crust. Aluminum foil is a thin, flexible metal material that is not edible and does not have the properties needed for a sandwich crust, such as being able to be baked or providing a crispy texture. It is also not safe for consumption and could potentially cause injury if ingested. Instead, a sandwich crust can be made from bread dough or other edible materials designed for baking.
