After several tries, he settled on a combination of three parts Tachia clay to one part Linkou clay, with a 35 % ratio of gravel, and a layer of 100 % Linkou red clay added to the outside.
幾次實驗後，他以三分大甲土、一分林口土，夾百分之三十五的砂作胚，在器物表面則用百分之百林口紅土作色衣。