The AMACO Artist's Choice Glazes imitate some of the most popular glaze recipes from artists and potters. All Artist's Choice Glazes are meant to fire to Cone 05 oxidation, but have the look of high fired reduction stoneware. They can be fired over any earthenware clay, however you'll get the best results over a dark or red low fire clay like AMACO's 67-M, Standard 103 or Miller 20. The red color in the clay will partially show through the texture and add another dimension of color to the glaze. These glazes will look completely different depending on the clay they are applied on (red or white).