Journalism

  Whether the material of the thermal insulation cup is qualified depends on the material of the inner liner of the thermal insulation cup. The inner liner of the thermal insulation cup is mostly made of stainless steel. There are three common types of stainless steel on the market: 201304 and 316.

 201 stainless steel has low chromium and nickel content. Although it is not easy to rust in a dry environment, it will rust in a humid environment. Therefore, it belongs to industrial stainless steel and cannot contact with food and drinks for a long time.

  The content of chromium and nickel in 304 stainless steel is relatively low, and it will not rust even in a humid environment. It is the main material of the inner liner of the thermal insulation cup at present, which conforms to the national standard.