The material is the most important thing to inspect when using the wok. The quality of the wok material not only determines the performance of the wok, but also affects the maintenance and other follow-up care, as well as the health of the cooking meals and the health of the consumers. Therefore, we need to do some good work on the material quality of the 304 stainless steel steamer.

For products from sources that are not trusted, the most reliable method is to send them to the laboratory. However, most consumers do not have this condition. Some netizens think that magnetic testing is a means. They think that Austenitic 304 steel is non-magnetic, while Ferritic and martensitic steel are magnetic. In fact, Austenitic 304 steel is not non-magnetic, but micro magnetic.

Austenite steel will precipitate a small amount of martensite in cold working. It has certain magnetism in the drawing surface, bending surface and cutting section. Moreover, 201 stainless steel is also micro magnetic, so it is not reliable to use magnets.

Stainless steel testing solution is a choice. In fact, it is to detect the content of nickel and molybdenum in stainless steel. The chemical substances in the solution react with nickel and molybdenum in stainless steel to form a specific color complex, so as to know the approximate content of nickel and molybdenum in stainless steel.

For example, when the nickel content in the tested stainless steel is greater than 8%, the color of 304 liquid medicine will be displayed, but because the nickel content of 316310 and other stainless steel materials is also greater than 8%, so if you use 304 liquid medicine to detect 310316 stainless steel, the color will also be displayed, so if you want to distinguish in 304, 310 and 316, you need to use the corresponding liquid medicine. In addition, the liquid medicine can only be detected on site The content of nickel and molybdenum in stainless steel can't detect the content of other chemical components in stainless steel, such as chromium, so if you want to know the accurate data of each chemical component in stainless steel, you have to send it to professional testing.