Baking soda is not cornstarch. Although they can both be used to thicken gravy, they are two completely different things. Baking soda is an inorganic substance whose chemical name is sodium bicarbonate, while starch is a type of sugar and there are many types. Baking soda is mainly used as a food additive, such as pastries, biscuits, bread, steamed buns and other cooking and baking food additives based on wheat flour, while cornstarch is mainly used for thickening and snacks to make dishes more flavorful and soups thicker.

Baking soda is not cornstarch. Although they can both be used to thicken gravy, they are two completely different things. Baking soda is an inorganic substance whose chemical name is sodium bicarbonate, while starch is a type of sugar and there are many types. Baking soda is mainly used as a food additive, such as pastries, biscuits, bread, steamed buns and other cooking and baking food additives based on wheat flour, while cornstarch is mainly used for thickening and snacks to make dishes more flavorful and soups thicker.