Basic knowledge of cold rice noodles: Cold rice noodles are a kind of pure starch food, which is made of starch in wheat flour. If you look at flour from the perspective of cold noodles, it is composed of gluten and starch. So to make cold noodles, we must first separate starch from gluten. The way to separate starch is to wash your face, which is why you must wash your face when making cold noodles. After washing your face, flour is divided into two parts, namely gluten and starch. White material in the flour water is starch, and the gluten left in the basin is gluten. The freshly washed noodle water can't be directly used to make cold noodles, mainly because the noodle water is too thin, and the cold noodles can't be formed and need to be precipitated. In short, making cold rice noodles is very simple and easy, and there are not many processes. The most important thing to make cold rice noodles is the correct method. Learning cold noodle technology is actually learning the correct operation method of each process. The real method is right. It is natural to make cold noodles well, and it is not as complicated as imagined. Just a simple snack, not much knowledge.