The main material of rice flour is rice, which is washed, then ground into powder, steamed into thin slices, cooled and made into strips. River flour is a common food in the south, which comes from Shahe, Guangzhou, and its color is white and bright. To make vermicelli, you should choose rice with high hardness and no cracks, and the white belly should be small to make vermicelli delicious.

Rice noodles can be divided into dry frying and wet frying. Dry frying without water, wet frying with water. Minnan is called naked strip, and Hakka is called hairpin strip, which is very common in the south.

The production of rice noodles requires four steps: rice, water, pulping and steaming. Rice must be made of late indica rice and water, and it is best to use mountain spring water and stone mill to make pulp.

The full name of rice flour is Shahe powder.

It is one of the traditional famous foods popular in Guangdong, Hainan, Guangxi and Fujian. Rice flour, also known as Shahe powder, is made by washing rice, grinding into powder, adding water to make paste, steaming in a cage, cooling and cutting into strips. Different from "kway teow".

It is a common snack ingredient in China, Guangdong, Guangxi and Southeast Asia. Originated in Guangzhou Shahe 1860 or so, hence the name.