Do I have to use tin foil for baking without water?

You must use tin foil for baking without water. Baking without water will stick to the pan, and adding tin foil will not stick to the pan. Anhydrous baking is not absolutely anhydrous, but requires a small amount of water, and the water should be as close as possible when heating. Without this function, a large amount of steam may be discharged when heating, resulting in no water heating in the pot and burning of food.

Tin foil is a kind of film-like metal paper coated or pasted with silver, mostly silvery white. The metal composition is actually aluminum, not tin. Most aluminum foil paper has a glossy side and a dull side. Aluminum foil paper for food can wrap food on both sides, and it is usually recommended to wrap it with bright side to improve the heat conduction effect. Aluminum foil paper is extruded from aluminum block with a plate rolling machine, then cut into required length and width, then rolled up and packaged for sale.