This cup was hand-crafted by master ceramicist Huang Changfa using the same clay and glazing of Shui Ji used by Song Dynasty potters. The silver spot oil glaze that naturally forms during firing recreates the Song tradition that was the inspiration for all Japanese Tenmoku wares. Because of the hand-dipped glazing, it is rare to see hand made Jian Zhan cups small enough to be used in Gongfu tea, so this is an exciting new offering. The base is left unglazed for a beautiful contrast. Due to natural variation during firing, the patterns on each cup will be slightly different.