Designed by potters and tested extensively under real use conditions, Coyote Cone 6 Glazes are the first choice of thousands of ceramics artists from early hobbyists to professional production potters. Lead free and food safe when properly fired.* *Buttercup, Butterscotch Shino, Cedar Shino, Cherry Satin, Sunset Pint and Sunshine Yellow contain cadmium in the form of inclusion stains; in Coyote's testing, all of these glazes passed FDA leaching standards for cadmium release, however, due to the many variables in firing we recommend that ware produced for sale be tested by teh potter at an approved laboratory. *Blue Matt, Green Matt, Green Shino, Iron Matt, Peacock Green, Purple Matt and Turquoise Matt are not recommended for food use. May change color or texture with repeated exposure to food and dishwasher detergents. Crawl glazes should not be used on food surfaces.