Traditional Culture Encyclopedia - Traditional stories - There are fire marks on the bottom of the outer porcelain gold bowl.

There are fire marks on the bottom of the outer porcelain gold bowl.

This is a common feature of ancient porcelain.

The bottom of the bowl left one or more obvious flame-shaped marks. This phenomenon mainly appeared in and before the Song Dynasty. It comes from the reaction between the high-temperature kiln foot and the low-temperature glaze in the manufacturing process, which leads to the local fading, cracking or blackening of the glaze.