The popularity of stone grinding in the evolution of Chinese food culture

From the Neolithic Age until the Yin and Shang Dynasties, the processing of grains had been relatively primitive and simple. The pioneers roughly processed grains by means of mills, grinders, pestles and mortars, which made it difficult to provide large quantities of hulled and cleaned rice. By the Zhou Dynasty, the emergence of stone is not, is a leap in the primary processing of cereals. Shiwu, that is, stone mill. The primary processing of grains, from mainly grinding and pounding to mainly grinding. With the popularization of stone grinding, the Zhou people's diet has improved greatly.