Most of the materials used for face-lifting are potato flour, which is white, crystal clear and tough, smooth and tender to eat and good in taste. Northeasters do not pay much attention to cooking this dish. Most of them are cut wide and mixed with seasonings such as onion, ginger and garlic.

There is a fan entry in Ci Yuan, which explains: "Also known as fans and online fans. One of starch products. Starch mainly comes from beans with high amylose content, such as mung bean, pea, broad bean, cowpea and adzuki bean, among which mung bean starch is the best. You can also use sweet potatoes and corn as raw materials. General raw materials are soaking, grinding, extracting powder, pasting, leaking powder, pulling the pot, separating powder, drying powder, soaking powder and hanging dry. "

There is still a lot of alum in the vermicelli. Eating too much is bad for your health.