JianZhan Tea Cup – Kiln transformation technique

The kiln transformation technique is a traditional ceramic firing process characterized by controlling the kiln’s temperature, atmosphere, and glaze composition to create natural variations in glaze color and texture during firing. What makes this technique unique is its unpredictability, as each piece of kiln-transformed ceramic may display different colors and patterns, thereby possessing distinct artistic value.
In this technique, ceramic pieces are typically fired in a high-temperature reduction atmosphere, which alters the chemical composition of the glaze, causing chemical reactions at high temperatures. Common colors produced through kiln transformation include red, blue, green, and yellow, which are created by the chemical changes of various metal oxides (such as iron oxide and copper oxide) during the firing process.
The history of the kiln transformation technique can be traced back to ancient China, particularly during the Song Dynasty, when the technique saw significant development. Kilns such as those at Jingdezhen and Longquan became renowned for their achievements in creating kiln-transformed glaze colors. Today, this technique remains popular in modern ceramic art, with many ceramic artists experimenting and innovating to create new kiln transformation effects, allowing this ancient craft to continue flourishing with new vitality.