Durable Construction and Odorless Unicook pizza stone is crafted from all-natural Cordierite and sintered in a 2100 F kiln for hours. It is superior strength, durability, heat retention and excellent thermal shock resistance. No unpleasant smell when heating. High heat resistance up to 1,450 F (787 C). Uniform Heat Distribution The baking stone's special porous structure ensures even heat distribution and efficient moisture extraction from the dough, resulting in crispy crusts for your pizza or bread, avoiding sogginess common with metal pans. Pizza Stone for Oven and Grill Pizza baking stone measures 15 x 12 x 0.6 , weighs up to 6.6 lbs.