It is made of three kinds of raw materials. The outermost layer of the barrel is called external paste, which is color printed. The inner layer is called internal cup paper, and the bottom is called base paper.

External sticking is mainly for beauty and anti-scalding.

The inner cup paper and backing paper are more knowledgeable. The inner cup paper is made of coated paper and white paper. The white paper is made of good pulp, which is also the raw material for toilet paper. The coated paper is polyethylene, which is waterproof and internationally recognized as a material for holding food. It is non-toxic.

The coated layer is melted at high temperature, which makes it stick together, and then the barrel is molded. After that, a series of processes such as curling and adding water lines are added to make the instant noodle barrel.

Several famous manufacturers of instant noodles in China are: Wuxi Fangcheng, Chongqing Taibao, Hubei Green World and so on.