A baking stone is a portable cooking surface used in baking. It may be made of ceramic, stone or, more recently, salt.[1][2] Food is put on the stone, which is then placed in an oven, though sometimes the stone is heated first.[3] Baking stones are used much like cookie sheets, but may absorb additional moisture for crispier food.[4][5] A pizza stone is a baking stone designed for cooking pizza.
^Bitterman, Mark (2010). Salted: A Manifesto on the World's Most Essential Mineral, with Recipes. Ten Speed Press. p. 271. ISBN9781580082624.