Excellante Crimson Melamine Collection Boullion Mug, 8-Ounce, Pure Red 4-1/4-Inch bouillon cup - 8-Ounce - Pure Red (comes in 12 pieces) Made out of 100-Percent non-toxic melamine material Comes in wide range of other colors: blue, white, Ivory, yellow, Adobe and green It is dishwasher safe and National Sanitation Foundation (NSF) approved Not recommend for microwave or oven use, but able to withstand up to 212 degrees Fahrenheit