The main ways to eat cold rice noodles are cold rice noodles with cold sauce, fried cold rice noodles with hot soup and wrapped cold rice noodles (also called rolled cold rice noodles), but cold rice noodles with cold sauce are the most popular and have the most market, and several other ways to eat them have certain limitations. For example, fried cold rice noodles and hot soup cold rice noodles are mainly in winter, and wrapped cold rice noodles are mainly in Puyang, Henan. The technique of cold noodles is actually very simple, which can be said to be the simplest of all snacks. It is a pure starch food, which is made of starch in wheat flour. Therefore, to make cold noodles, you must first separate the starch from the flour. The way to separate starch is to wash your face, which is why you should 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. Starch in noodle water is used to make cold noodles, and gluten is a by-product of cold noodles. In a word, there are not many processes for making cold noodles, but each process is not independent, but interrelated, restricted and interlocking. If you want to make cold noodles well, the most important thing is the correct method, which is the basis for the success of cold noodles. Otherwise, you can't make a good product by hearsay alone.