Clear Porcelain Glaze: Feldspar, Whiting, Kaolin and Flint, Binns 1910

Charles Binns's simplest porcelain glaze (The Potter's Craft, 1910): feldspar 167, whiting 70, kaolin 52 and flint 108 parts, ground fine with water. It fires clear and bright on porcelain at cone 10 to 12 in a reducing fire, and Binns says the same glaze also serves for stoneware. The picture: a Korean porcelain bottle under clear glaze, Joseon dynasty, c. 1400–1500 (Asian Art Museum, San Francisco; photo by Daderot, Wikimedia Commons, public domain).