Brick Oven Square Ceramic Pizza Stone (12-Inch) Each package contains one pizza stone. The ceramic stone material allows for even heating and absorbs moisture to deliver a delicious crust. Oven safe to 500 degrees F, the stone retains heat at an even and constant temperature. In addition to pizza, the stone is ideal for bread, pastries, and other baked goods. Hand wash the stone with warm water and a mild detergent to clean, then rinse and dry immediately.