1. Check the packaging
When purchasing stainless steel products, you should carefully check whether the materials and steel numbers used on the outer packaging are marked; whether the manufacturer's name, address, telephone number, and container's hygiene standard are indicated.
2. Magnet inspection
It can be judged with a magnet. Regular manufacturers generally use 304 (ie, 18-8) and 430 (ie, 18-0) stainless steel fork spoons, 420 (ie, 13-0) knife, 430 and 420 are magnetic, and 304 is micromagnetic.
3. Weight comparison
The same thickness and shape of stainless steel cutlery, high-end cutlery will be heavier than the low-end material cutlery weight. However, the difference in density is very small. The density of stainless steel 304 is 7.93, and the density of 430 and 420 is 7.85, which cannot be judged by intuitiveness.
4. Rejecting small vendors
It is best not to buy stainless steel products from the hands of small vendors. They induce consumers to buy at extremely low prices. In fact, most of the products on the stalls are fake. The real stainless steel products are not so cheap and will be harmful to their health.
5. Stainless steel body type
Stainless steel cutlery mainly includes "austenitic" stainless steel and "martensitic" stainless steel. Bowls, plates, etc. generally use non-magnetic "austenitic" stainless steel production; knives, forks and other general use of magnetic "martensitic" stainless steel.
6. Chrome nickel content
Stainless steel cutlery generally contains chromium and nickel, chromium does not rust the product, and nickel is a corrosion resistant material. The use of inferior quality stainless steel cutlery is likely to cause harm to human health from heavy metals. Attention should be paid to the parameters indicated above when purchasing.