Icy rain

When firing porcelain, after opening the kiln, if the porcelain is found to have an unexpected shape or glaze color due to the accidental appearance of the kiln - change glaze with a special form, it is called "kiln - change glaze". There is a common saying that "no two kiln - change glazes are the same". As the name implies, kiln - change glaze refers to the unexpected glaze color effect that appears on the porcelain during the firing process. Since there are various coloring elements in the kiln, through oxidation or reduction, the porcelain may present an unexpected glaze color effect after being taken out of the kiln.