Lotus root powder can be soaked in noodle soup, but the temperature of the noodle soup must be up to the temperature of soaking lotus root powder, otherwise the lotus root powder will not be formed. Lotus root noodles are a snack categorized as red lotus root noodles, pure lotus root noodles, and rock sugar lotus root noodles. Traditionally, it is made only from mature lotus root, through the strict selection of lotus root, grinding, settling, hammering, knifing and other traditional techniques, without any chemical treatment, and does not change the inherent physical and chemical properties of starch, so it is known as the ancient method of pure lotus root powder. Since ancient times, West Lake Lotus Root Vermicelli is the most famous, West Lake Lotus Root Vermicelli is the famous product of Hangzhou, is the famous brand of Lotus Root Vermicelli, and has been used as the tribute powder to enter the royal family in history. Lotus root powder is in the form of thin slices or grains, and its color is white and red. The good lotus root powder is transparent and slightly red, fine texture, easy to digest.