Careful observation of tin foil shows that its two sides are different. One side is bright and the other side is dark. The bright side is called the photosensitive side, and the dark side is called the matte side. When we use it, we should touch the food with the frosted surface to improve the heat conduction effect. The photosensitive surface is exposed. If you accidentally use it backwards, the photosensitive surface will touch the food, which may cause the food to stick to the tin foil.

Extended data:

Aluminum foil paper, also called tin foil in Hong Kong, is a thin sheet with a thickness of less than 0.2 mm. Most aluminum foil paper has a shiny side and a dull side. Mainly used for packaging food, medicine, cosmetics and other chemical products. Tin foil is processed by aluminum foil rolling mill, which is generally processed into thin slices with a thickness below 0.2 mm. The raw material for processing is aluminum blocks, which are cut into required lengths and widths after processing, then rolled up and packaged for sale.

Some foods (such as sweet potatoes and mushrooms) must be wrapped in aluminum foil to avoid burning. Baked seafood, mushrooms and so on wrapped in aluminum foil. , you can keep the umami flavor.

The role of tin foil in barbecue;

The first is to prevent food from sticking to the baking tray.

The second is to prevent food from getting dirty.

Third, it is convenient to brush the baking tray.

Fourth, some foods are baked with spices, and the fillings are wrapped in tin foil, so as not to be scattered.

The fifth is to prevent water loss and keep fresh and tender.

? References:

Tin foil Baidu encyclopedia