A pizza stone is a flat slab of heat-retentive material, traditionally unglazed terracotta or cordierite, placed in a domestic oven to mimic a professional pizza deck. Preheated thoroughly, it stores intense heat and transfers it rapidly to the pizza base on contact, producing the crisp, blistered crust that a thin metal tray cannot achieve, while its porous surface wicks moisture from the dough. The stone also bakes breads, flatbreads, and pastries more evenly by stabilising oven temperature. Use requires care: thermal shock from cold water on a hot stone cracks it, soap absorbed into the porous body taints flavour, so cleaning is by dry brushing and the occasional high-heat burn-off. A well-seasoned stone, darkened by years of use, is a badge of serious home baking.