Le Creuset Stoneware Pie Pans, 9-Inch, Cassis Hard-wearing, impermeable finish fired at temperatures as high as 2192f Unmatched thermal resistance from -65f to 500f safe for the freezer, microwave, oven, broiler and dishwasher Less than 1% porosity, blocking moisture absorption which can lead to cracking, crazing and rippling along the interior A perfectly color-matched palette of bold, consistent tones for easy mixing and matching with other le creuset products Dense stoneware blocks moisture absorption to prevent cracking, crazing and rippling