ashglazed

Ash glaze is a type of ceramic glaze that derives its fluxing properties from wood ash. Wood ash, primarily composed of alkaline materials like potassium carbonate and calcium carbonate, reacts with silica in the clay body at high temperatures to form a glass. This process typically occurs in reduction firing environments, often reaching stoneware or porcelain temperatures.

The composition of ash glaze can vary significantly depending on the type of wood burned, the soil from which the wood grew, and the preparation of the ash. This variability contributes to the unique and often unpredictable results of ash glazes. They are known for their subtle color variations, often resulting in earthy tones, ranging from soft greens and browns to translucent whites and grays.

Historically, ash glazes were among the earliest forms of glazed pottery. They were widely used in China, particularly during the Song Dynasty, and in other Asian countries. In contemporary pottery, ash glazes are appreciated by many ceramic artists for their natural beauty, organic feel, and the distinctive surface textures they can create. These textures can range from smooth and glassy to rough and crystalline. Due to the natural and variable nature of the ingredients, each firing with an ash glaze can produce distinct and unique results, making them a favorite for those seeking individualistic ceramic pieces.