《陶成纪事碑记》中也记叙唐英亲赴窑址采集标本，文中载：“一仿米色宋釉，是从景德镇东二十里外，地名湘湖，有故宋窑址，觅得瓦砾，因仿其色泽、款式。”

"Pottery" also describes tang Ying went to the kiln site to collect specimens, the article contains: "a imitation of beige Song glaze, from the east of Jingdezhen 20 miles away, the name of the Xiang Lake, song kiln site, found rubble, because of imitation of its color and style.

烧造瓷器，凡在开窑后发现不是预期的形状或釉色，以至于传世瓷器有时发生特异的情况者，都可说是“窑变”。《稗史汇编》说：“瓷有同是一质，遂成异质，同是一色，遂成异色者，水土所合，非人力之巧所能加，是之谓窑变。”总而言之，窑变大致可分为变形、变色、变质等数种。

In firing porcelain, when the kiln is opened, it is found that the shape or glaze color is not the expected, so that the special condition of the handed down porcelain sometimes occurs, which can be said as "kiln change". "The Collection of Barnyard Grass history" said: "Porcelain is the same quality, then become different, the same color, then become different color, water and soil, not human ingenuity can add, is called kiln change. In a word, kiln change can be roughly divided into deformation, discoloration, metamorphism and so on.