Roasted bran is made by grinding wheat with skin into wheat bran flour, then rubbing and sifting it in water to separate the gluten, and fermenting and steaming it. Gluten is made by adding an appropriate amount of water to the flour. , a little salt, stir well and vigorously to form a dough, and then wash it repeatedly with water to wash away all the starch and other impurities in the dough, and the rest is gluten.

Baked bran, often mistakenly called roasted bran, is made from raw gluten, which is kept warm, fermented, and steamed at high temperatures. It is a common vegetarian food. It is brownish-yellow in color, has many pores and is a bit like a sponge, and has a soft and elastic texture

1. Gluten is a plant protein composed of gliadin and glutenin. Add appropriate amount of water and a little salt to the flour, stir well and form a dough.

2. Later, wash it repeatedly with water to wash away all the starch and other impurities in the dough, and the rest is gluten.

3. Roll the oily gluten into a ball shape by hand, put it into a hot oil pan and fry until golden brown, take it out and serve. Put the washed gluten into a pot of boiling water and cook for 80 minutes until cooked, which is called "water gluten".