The aluminum pot is lightweight, durable, fast to heat, evenly conducts heat, and does not rust. It is understood that there are mainly two types of aluminum products: refined aluminum (soft aluminum) products and cast aluminum (hard aluminum) products, made of aluminum and aluminum alloys. The surface color can be divided into white, light yellow, and other colors. White aluminum products can be divided into two types: casting and stamping. The surface of the cast aluminum products is white after turning and mechanical polishing, but the metal structure is loose and there are certain Casting defect. Stamped aluminum products, whose surface has been whitened, sanded and mechanically polished, have a natural oxide film with a film thickness of only 0.01-0.15 μ m. Thin and uneven, easily scratched or worn by machinery. The yellow aluminum products are stamped products that undergo anodizing treatment to generate a light yellow artificial oxide film on their surface. The oxide film is generally 5 to 20 thick μ m. Uniform and dense, the membrane will not be damaged in 100 seconds under strong alkaline action. Therefore, light yellow aluminum products are the best, as they have the characteristics of aesthetics, easy dirt removal, strong corrosion resistance, and strong wear resistance. Koreans often use yellow aluminum pots to cook noodles.
In daily life, many people like to use steel wire balls to polish the bottom of aluminum pots and pans until they shine. Experts say that although this method removes stains from the pots, it also removes the protective oxide film on the surface of aluminum cookware. So, when using aluminum cookware such as aluminum pots and kettles, there is no need to wipe off the light yellow rust on the surface.
(2) Select
When selecting an aluminum pot, it should be noted that the pot body is straight and round, the bottom, lid, and inside and outside of the pot are bright, without dark or black spots or cracks. At the same time, the structure of the components, such as rivets, ring heads, etc., should be checked for firmness, and there should be no pits or sand holes.