Blue and white porcelain

"Blue and white porcelain " (Chinese: 青花; pinyin: qīng-huā; literally "Blue flowers") designate white pottery and porcelain decorated under the glaze with a blue pigment, generally cobalt oxide. The decoration is commonly applied by hand, by stencilling or by transfer-printing, though other methods of application have also been used.

The first Chinese blue and white wares were as early as the ninth century in Henan province, ChinaThe blue-and-white technique was fully developed in China with porcelain technology in the 14th century.