BOCCHI fireclay kitchen sinks are 100% natural, organic and recyclable-- timelessly elegant, fireclay has been used by master craftsmen for centuries. Fired in kilns at 2000 degrees Fahrenheit, fireclay becomes the most durable material used in kitchen sinks today. Thus, dealing with extreme heat from pots and pans is definitely not a problem. Additionally, the special glaze coating is fused to the fireclay body to ensure our sinks have a non-porous, uniform, scratch and stain resistant surface. Available in 9 designer colors and finishes.