The stone grinding disc, an ancient utenvelope, plays an important role in traditional Chinese farming culture. It is not only a tool for grinding grain, but also one of the symbols of agricultural civilization. Stone grinding discs have a long history, dating back to the late Neolithic period, and after thousands of years of evolution and development, they have gradually formed a unique production technique and use method.
A stone grinding disc usually consists of two stone discs of the same size, one on the top and one on the bottom, with a wooden plug or stone plug placed between the two stones as the grinding core. When used, the grain is put into the grinding hole of the upper plate, and the upper plate is driven to rotate by manpower or animal power, and the grain is gradually ground into powder under the friction of the upper and lower stones. Although this grinding method is less efficient, it can retain the original nutrition and taste of the grain, so it is very popular. 
The production process of stone grinding disc is very cumbersome, and it needs to go through multiple steps such as material selection, rough processing, fine processing, and polishing. Material selection is key, and hard, delicate and crack-free stones are usually chosen as raw materials. During the process, the craftsman needs to use a lot of experience and skill to polish the stone into the right shape and size, and ensure that the upper and lower plates fit together. Finally, it is also necessary to polish the surface of the stone grinding disc to make it smooth and delicate to improve the use effect.
With the progress of science and technology and the development of modernization, the stone grinding disc has been gradually replaced by modern grain processing equipment. However, in some places, people still retain the habit of using stone grinding discs. They believe that the grain made by the stone grinding disc has a better taste and higher nutritional value. In addition, the use of stone grinding discs allows people to feel the charm of traditional farming culture and experience the lifestyle of harmonious coexistence between man and nature.
In addition to being used as a grain processing tool, stone grinding discs also play a role in some special occasions. For example, in some rural areas, stone grinding discs are used to make special dishes at traditional festivals or celebrations to showcase local farming culture and traditional skills. In addition, stone grinding discs have become a material for some artists and craftsmen. They express their creativity and emotions by carving patterns or words on stone grinding discs.