Is the food container made of plastic or glass?
Food container is best made of ceramic, glass or stainless steel. Plastics have odors. Many plastics are toxic. Containing food can cause harmful substances.
The food is sealed in a container, and most of the microorganisms are killed by high temperature treatment, and the external microorganisms are prevented from invading again, so that the food can be stored for a long time at room temperature. Invented in 1810 by n. Appel of france. At the beginning, it was a bottle of food cooked in boiling water. After more than 100 years of development, it has been preserved in aseptic cans after sterilization and canning. It has become a major food preservation method.