Stoneware glazes offer the depth, sophistication and reliability to artists working from mid-range to high-fire temperatures. Many glazes will break over textures, revealing secondary colors and shades. The choice of clay body, thickness of glaze application, firing process and temperature will affect the fired results.
First image is cone 6. Second image is cone 10.
Tableware producers must test all finished ware to establish dinnerware status, due to possible variations in firing temperature and contamination.