But if any of the ingredients are impure, the molding uneven, or the glaze applied either too thinly or thickly, the piece will have to be discarded. Only a very few actually pass these tests and become those that we see exhibited in art galleries.
而那些瓷土成份不佳、坯拉得不勻稱、釉料上得太厚或太薄… … 的作品，也會在窯燒過後，毛病和缺點充分暴露，而被識者所淘汰。