Glass, Dong Jinshi, vice president and secretary general of the International Food Packaging Association, pointed out in an interview that any material has a certain range of safe use. A container that can hold food at room temperature may not be used in a microwave oven at high temperature. When cooking in a microwave oven, tableware should be used reasonably according to the characteristics of different materials, preferably glass or white ceramic containers.

The material of the glass itself comes from nature, and the harmful substances have volatilized after high temperature in the production process, so the glass has high safety, high temperature resistance and good thermal conductivity, and is suitable for microwave cooking.

Nowadays, many consumers like stainless steel kitchenware and tableware very much. Because of its good metal properties, compared with other metals, it has corrosion resistance, and the utensils made are beautiful and durable, which are more and more used to make kitchen utensils. However, stainless steel is made of iron-chromium alloy mixed with other trace elements. If it is not used properly, its trace metal elements will gradually accumulate in the human body, which will endanger human health when it reaches a certain limit.