The tableware with the three codes “13-0”, “18-0” and “18-8” printed on the tableware is made of stainless steel. The number in front of the code indicates the chromium content, and the “bouquet” brand hollow handle stainless steel at the back Tableware [1] The number represents the nickel content, chromium is a material that prevents the product from rusting, and nickel is a corrosion-resistant material. For example, “13-0” means 13% chromium and no nickel. Pay special attention to the following when purchasing:
1. When purchasing stainless steel products, you should carefully check whether the material and steel number used are marked on the outer packaging; whether the manufacturer’s name, address, telephone, and container sanitation standards are indicated.
2. Magnets can be used to judge. Regular manufacturers generally use 304 (ie 18-8) and 430 (ie 18-0) stainless steel for forks and spoons, and 420 (ie 13-0) for knives. 430 and 420 are magnetic, and 304 is micro-magnetic. However, there is also a tableware made of 201 and 202 materials in the market, which is not magnetized, but whether it can be used to process tableware is controversial in China. Some people think that materials 201 and 202 contain high manganese and are not food-grade stainless steel.
3. Under normal circumstances, stainless steel tableware of the same thickness and shape, high-end tableware will be heavier than low-grade tableware. But the density difference is very small, 304 stainless steel is 7.93, 430 and 420 density is 7.85, it is impossible to judge intuitively.
4. It is best not to buy the so-called stainless steel products in the hands of small vendors. There are many such stalls on the street, and the boss often attracts consumers at very low prices. In fact, most of the stalls are fake, and real stainless steel products will not be so cheap. Because the price of the product is determined according to the cost of the materials, the light “stainless steel” is definitely not edible stainless steel, so the big guys must not buy those fake and shoddy products cheaply, which will harm their health.
