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
Liverpool porcelain Liverpool porcelain Liverpool porcelain is mostly of the soft-paste porcelain type and was produced between about 1754 and 1804 in various factories in Liverpool. Tin-glazed English delftware had been produced in Liverpool from at least 1710 at numerous potteries, but some then switched to making porcelain. A portion of the output was exported, mainly to North America and the Caribbean. The factories produced a great variety of wares and some figures. However the main production was underglaze blue and white porcelain with the fashionable Oriental designs, which Liverpool delftware painters were already well used to. Some transfer-printed wares, both overglaze