1. Cornstarch is corn flour or potato flour. It is mainly used for thickening. The cornstarch used in mainland China is extracted from potatoes, while the cornstarch used in Hong Kong is extracted from corn. .

2. Cornstarch is a term that often appears in recipes. It is mostly used to thicken the soup. The cornstarch used in mainland China and Taiwan is potato flour, and the cornstarch used in Hong Kong is corn flour. In Chinese cooking, cornstarch not only thickens the food to give it a smooth texture, it is also commonly used as a marinade to soften the meat. Cornstarch has a wide range of uses. It can be used as a seasoning for stir-fries, jelly, and pancakes. It is mainly used for sizing and thickening when processing meat raw materials.