Vermicelli is one of the common foods in China, often called vermicelli, winter flour (mainly in Taiwan Province Province) or spring rain (mainly in Japan). The best vermicelli is made of mung bean, corn starch or sweet potato starch, but the quality is not as good as mung bean vermicelli, because mung bean has the most amylose, which is not easy to rot when cooked and tastes the most greasy. Similar to spaghetti, it is sold after drying, and it is best to soak in water to soften before eating, so it is coarse grains and has a certain weight loss effect.