Baking stone: the key tool for homemade bread and pizza

Discovering the “magical” refractory stone

Bread and pizza are among the most common preparations in home kitchens for those who experiment with dough and leavening. In recent years, alongside the spread of home baking, the use of refractory stone has become increasingly popular, a type of baking stone designed to improve baking performance in home ovens. It's a simple tool in design, but requires careful use and maintenance to fully exploit its potential.

Refractory stone is made of materials capable of withstanding high temperatures and gradually accumulating heat, then releasing it evenly. Clay, cordierite, and ceramic blends are the most common compositions. The operating principle is the same as that of wood-fired oven cooking surfaces: a hot, stable surface that cooks the dough from below, encouraging the development of the internal structure and a dry, well-formed base. It's no coincidence that traditional Neapolitan ovens use the so-called Sorrento biscuit, a clay material that can truly be considered a historic refractory stone.

From a technical standpoint, the key characteristic of stone is its porosity. This allows it to absorb some of the moisture released by the dough during baking, improving the crispiness of bread and pizza and reducing the risk of soggy bases. At the same time, its heat-retaining capacity allows it to be used at high temperatures even in home ovens, which rarely exceed 250 degrees Celsius.

Proper use begins with positioning. The stone should be placed in the oven while it is still cold, preferably in the upper part, near the top heating element. This reduces the risk of thermal shock and allows the slab to heat gradually. Once the oven is turned on, it is necessary to wait for the stone to accumulate heat evenly: this generally takes at least fifteen to thirty minutes, depending on the thickness and material. Only after this time is it appropriate to place the dough on the surface.

There's no universal baking time. Pizza and bread react differently, as do the type of oven, the hydration of the dough, and the thickness of the stone. At temperatures around 250 degrees Celsius, a pizza can cook in a few minutes, while bread takes longer. It's important to observe the surface of the product, especially for pizzas with toppings, because proximity to the top heating element can accelerate browning.

A refractory stone shouldn't be treated like a traditional baking pan. It shouldn't be oiled or greased, as fats are absorbed by the porous material and leave permanent stains, as well as compromising subsequent baking results. A light dusting of flour or semolina is sufficient to prevent dough from sticking. Likewise, bread and pizza should not be cut directly on the stone, as blades and cutters can damage the surface.

Cleaning is one of the most delicate steps. It should only be done when the stone is completely cool. Dried residue should be removed with wooden, rubber, or rigid plastic spatulas, avoiding metal materials. For light dirt, a damp cloth is sufficient; for more stubborn encrustations, a non-abrasive sponge and water can be used. Detergents and soaps should be avoided, as they would be absorbed by the material and alter the flavor of future dishes.

For stubborn stains, a commonly accepted solution involves using baking soda mixed with water to form a soft paste, applied locally and removed after a short period of time. Color variations that develop over time are not a defect, but a sign of use: the patina that forms does not compromise the functionality of the stone.

Once cleaned, the stone should be carefully dried and stored horizontally. Many leave it directly in the turned-off oven, taking advantage of its ability to stabilize the temperature even during ordinary baking. Used correctly, the refractory stone becomes a stable and durable tool, capable of significantly improving the quality of homemade bread and pizza without resorting to professional ovens.