1. Potato starch is not cornstarch, but cornstarch includes potato starch.

2. When you buy cornstarch in the supermarket, there will be ingredients on the packaging bag. Most of the time it is corn starch, or there is also potato starch or sweet potato starch. In fact, it can be said that cornstarch is starch, but Because there are many types of starch, we cannot say that starch is cornstarch.

3. Different regions have different names. Corn starch and potato starch are called cornstarch in Guangdong, while they are called starch in Zhejiang and other regions, so they cannot be said in a general way. Potato starch is cornstarch.