Flour, also known as flour, flour, wheat starch, is a gluten-free flour. The composition of flour is wheat. By rinsing the flour with water, the gluten in the flour is separated from other substances, and the gluten becomes gluten. After the water is precipitated and dried, the rest is flour. The powder is white in color and smooth in texture, and the prepared snacks are translucent and crisp, while the steamed products are smooth in entrance and the fried products are crisp. It can be used to make various dim sum cakes, such as rice rolls, shrimp dumplings, vermicelli and so on. It is also the raw material for making cold noodles. The production steps of finished noodles are as follows:

1. After wheat flour is made into dough, it is directly washed with water until the volume of the dough is no longer reduced.

2. Let the water stand for precipitation until the turbidity is separated, then slowly pour out the water on the upper layer and dry or dry the remaining viscous substances.

3. Powdered flour needs to be brewed with boiling water to make it gelatinized and sticky before it can be made into dough. The corresponding starch can be obtained by using potatoes or sweet potatoes as pulp or mung bean powder as flour.