The craft works of celadon fish cups are all made by crystal pressing, followed by many processes such as trimming, drying, glazing, firing, and high temperatures of around 1300 ℃ before firing. Generally speaking, celadon is mostly plain and has high requirements for the glaze. However, the glaze is flowing at a high temperature of 1300 ℃ and is often prone to glaze detachment and burning, so the yield of thick glazed celadon is low. With good luck, a yield of 10% can be said to be quite mature Art has improved. This colored carp cup is a typical example of a thin and thick glaze with a pure, ancient and lively glaze color