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
Saint-Cloud porcelain Saint-Cloud porcelain Saint-Cloud porcelain was a type of soft-paste porcelain produced in the French town of Saint-Cloud from the late 17th to the mid 18th century. In 1702, Philippe I, Duke of Orléans gave letters-patent to the family of Pierre Chicaneau, who were said to have been making porcelain as "perfect as the Chinese" since 1693. Chicaneau's factory was a pioneer in the manufacture of porcelain in Europe, where there had been many attempts to copy Chinese porcelain. Saint-Cloud developed a frit ("a mixture of a flux, sand and chalk") which was close, although not similar, to Asian porcelain. The