Egg tart, cake roll, protein sugar, tart skin, puffs, soft European potato bag, etc. Cake and bread are both baked goods. Baking is an indispensable step in the production of bread and cake. After baking, starch undergoes a series of chemical changes, such as gelatinization and protein denaturation, and bread and cake mature. Baked food is rich in nutrition. The protein content of wheat flour and wheat flour is 2-3 times that of rice, 2 times that of corn flour, 4 times that of rice and 8 times that of corn flour. Due to the physical and chemical effects of yeast, baked goods are rich in protein and amino acids, which are easy to absorb and have good taste and color.