raw material：Select delicate clay rich in iron elements，After washing、precipitate、Processing of multiple processes such as aging and decay。

forming：Mostly using the wheel system method（Quick wheel casting），Make the wall of the device extremely thin and uniform。

fire：

Adopting reduction flame firing technology：Closed kiln in the later stage of firing，Reduce oxygen supply，Reduce the iron element in the ceramic body to ferrous oxide（FeO），Thus presenting a deep black color。

The firing temperature is generally around800℃—1000℃between。

surface treatment：Part of the black pottery has been polished and polished，Presenting a metallic luster，No need to apply glaze“Bright as a mirror”。