Therefore, in glaze coloring, in addition to the yellow of zinc crystal and cobalt blue, he's also tried a new system of oxidizing a coffee color, giving the zinc crystal a new appearance.
於是在釉色上，孫超於鋅結晶釉常用的金黃、寶藍、翠綠等色調外，試著摻些以氧化鐵為主的咖啡色系，使一向亮麗的鋅結晶，另有一種沉穩內涵。