Can aluminum foil facing be used for cooking? If so, how?

Yes, aluminum foil can be used for cooking. It's commonly used for wrapping foods to retain moisture and heat, such as when baking potatoes or fish. You can also create a foil packet (en papillote) by placing food in the center of a large piece of foil, seasoning it, and then folding the foil to seal the edges. This method steams the food, keeping it moist. For grilling, use heavy-duty foil to prevent tearing and place food directly on it. Remember, avoid using aluminum foil with acidic foods as it can react and leach aluminum into the food.