Le Creuset Stoneware 4-Piece Dinnerware Set, Cassis High-quality exterior enamel protects against metal marks and other damage Hard-wearing, impermeable finish fired at temperatures as high as 2192f is safe for cutting on with knives Less than 1% porosity, blocking moisture absorption which can lead to cracking, crazing and rippling along the interior A virtually nonstick glazed interior that easily releases foods for quick cleanup A perfectly color-matched palette of bold, consistent tones for easy mixing and matching with other le creuset products