1, if you use flour instead of starch to marinate meat, you will feel meaningless, because it will not tenderize the meat like starch, nor will it make the meat taste better, but it will become sticky. If flour is used instead of starch to thicken meat, there will be no starch effect at all, and the soup will not become transparent or pure. If the purpose of personal cooking is only to make the soup look sticky, then flour will still be used.

2. Starch is powder made of potato, sweet potato or corn, which can be said to be a part of flour. The main component is carbohydrate, which is insoluble in water, especially hot water, and can quickly become a translucent viscous liquid, which is basically used for curing meat or thickening.

Flour is powder made from wheat. Compared with starch, it has more comprehensive nutrition and contains protein, carbohydrate, fat and other nutrients. It is often made into noodles, steamed bread and other staple foods, and sometimes it is wrapped in other foods and fried in an oil pan.