Porcelain single operation. In this process, "green" (unfired) ceramic wares are heated to high temperatures in a kiln to permanently set their shapes. Porcelain is fired at a higher temperature than earthenware so that the body can vitrify and become non-porous. Porcelain originated in China, and it took a long time to reach the modern material. Until recent times, almost all East Asian porcelain was of the hard-paste type. There is no precise date to separate the production of proto-porcelain from that of porcelain. Although proto-porcelain wares exist dating from the Shang dynasty (1600–1046 BC), by the time of the Eastern
Jingdezhen porcelain porcelain, for the Chinese market and as Chinese export porcelain, but its best-known high quality porcelain wares have been successively Qingbai ware in the Song and Yuan dynasties, blue and white porcelain from the 1330s, and the "famille rose" and other "famille" colours under the Qing dynasty. The Mongol Yuan dynasty established a body, the "Fuliang Porcelain Bureau" to regulate production, and the next Ming dynasty established official kilns to produce porcelain for the emperor; Jingdezhen continued to produce Imperial porcelain until the end of Imperial rule. The imperial kilns were situated at Pearl Hill (Zhushan) in Jingdezhen; some scholars