White jug (chahai) from Dehua, tall, into which the steeped tea is poured before being distributed into the cups, for Gong Fu Cha. The term Gaogu refers to the high-grade, warm, ivory-like quality of the porcelain and literally means high bone. Dehua has been known since the Ming dynasty for its high-quality porcelain, which was exported in large quantities to Europe under the name blanc de chine in the 18th century.