Generally, the flour needed for gluten is Gu Ruan flour (also called gluten flour), which is an industrially extracted flour.

Method for make gluten: making gluten material: take 2000g of high-gluten flour, add1000g of cold water to mix the flour, put it into more than 5000mg of clean water, knead and wash it (at least 3-5 times), and cover it with a wet cloth for more than half an hour after taking it out.