The tastiest stone oven pizzas, straight from your Grill Guru! Naturally you bake pizzas on your ceramic BBQ using the pizza stone from Grill Guru. The Grill Guru pizza stones are made from special cordierite ceramic and are manufactured at very high temperatures. They are therefore perfectly suitable to bake pizzas at high temperatures. The pizza stone has a width of 33 cm and is 1 cm thick. We advise using the pizza stone in combination with the plate setter/ Heat deflector to prevent burning the pizza on the stone. It is all about the details!