A cup is a vessel that holds water specifically. Its main function is to drink alcohol or tea, and the volume is generally not large. Or in ancient times, the cup used to drink tea was called gaiwan. Most of the basic vessels are straight or open, with the diameter of the rim nearly equal to the height of the cup. There are flat-soled, circle-footed, or high-footed. Archaeological data indicate that the earliest cups were first seen in the Neolithic period. Whether it is in Yangshao culture, Longshan culture or Hemudu cultural sites have seen the existence of pottery cups, this period of cup types are the most peculiar and diverse: with ears with single ears or amphora cups, with feet mostly cone-shaped, three-legged cups, goblet cups, high-handled cups, etc., according to different materials, can be divided into glasses, plastic cups, ceramic cups, wooden cups, stainless steel cups, etc.,
