Goesans

Goesans are a type of Japanese ceramic glaze characterized by its milky white, opaque appearance. The name "Goesan" is derived from the Japanese words "go" meaning five, and "san" meaning mountain, though the exact origin of this nomenclature is not definitively known. This glaze is typically made using a high-iron content frit, which, when fired under specific conditions, results in its distinctive aesthetic.

The opaque quality of Goesan glaze is achieved through the presence of numerous tiny bubbles trapped within the glass matrix. These bubbles scatter light, creating the milky effect. The color can vary slightly depending on the precise composition and firing temperature, sometimes exhibiting a subtle creamy or yellowish hue. Historically, Goesan glazes were often used on utilitarian wares like bowls and plates, valued for their soft, approachable look.

The application of Goesan glaze often involves multiple layers to achieve the desired opacity and texture. Firing temperatures for Goesan glazes are typically in the stoneware range, around 1200-1300 degrees Celsius. The interaction between the glaze, the clay body, and the firing atmosphere are crucial for the final outcome. Modern ceramic artists continue to explore and adapt Goesan glaze recipes, seeking to understand and control its unique visual properties.