Liancheng Fudi Reservoir Immigrants

A. During the air-drying process of Shanghang radish, only the state changed, and no new substances were produced, which was a physical change.

B, only the shape of xia yang beef has changed in the process of chopping into granules, and no new substances are generated, which belongs to physical changes.

C, a new substance alcohol is produced in the brewing process of Changting Jiuniang, which belongs to chemical change.

D, only the shape of red-heart sweet potato changes during slicing, and no new substance is generated, which belongs to physical change.

So choose C.