Unicook 13" x 13" Cordierite Pizza Stone for Oven & Grill — 0.6" Thick, Fast Preheat for Crispy Crusts

The Unicook 13" x 13" square pizza stone is a cordierite baking slab engineered to deliver even heat and crisp crusts for oven and compatible pizza grills.

This compact 13 x 13 inch stone (0.6" / 15 mm thick) is built from high-temperature cordierite to withstand fast preheats and searing oven/grill conditions up to 1,450°F (787°C). Its porous surface soaks up excess dough moisture, encouraging a golden, crackling crust that home bakers and pizza lovers prize. The square shape fits many 12" class pizza ovens—like Ooni Fyra, Karu, Koda, and Volt—when you confirm interior space and allow at least 1" clearance on every side.

How does this stone improve pizza and bread baking?

Unicook’s cordierite material stores and spreads heat steadily, eliminating hot spots and promoting an even bake across the dough. The stone’s porosity draws away moisture from the dough surface to help form a crisp exterior without overcooking the interior.

• High thermal mass for uniform browning
• Porous surface reduces sogginess for crisper crusts
• 0.6" thickness balances heat retention and fast responsiveness
• Works well for pizzas, artisan breads, cookies, pies, and calzones

Is this stone compatible with my pizza oven or grill?

The 13" square format is intentionally sized to suit many 12" pizza ovens and grills, but fit depends on your appliance’s internal dimensions and airflow needs. Always measure internal width and depth and allow a one-inch gap on every side so heat can circulate safely.

• Measured size: 13 in × 13 in (approx.) with 0.6 in thickness
• Compatible models: Ooni Fyra 12, Karu 2/12/12G, Koda 12, Volt 12 (verify clearance)
• Leave 1" clearance on all sides for proper airflow and safety
• Not recommended for enclosed ovens lacking sufficient interior space

How should I use and preheat the stone for best results?

Place the cold stone into a cold oven or grill, then bring the appliance up to the baking temperature to avoid thermal shock. The hotter and more evenly heated the stone becomes, the crisper the bottom of your pizza or bread will be—preheat time will vary by oven and target temperature.

• Always start heating with the stone inside a cold oven or grill
• Allow sufficient preheat time for the stone to reach baking temperature
• Use a peel dusted with flour or semolina to transfer dough to the stone
• Rotate toppings or the pie if needed for uniform color and bake

What maintenance and care does the cordierite stone need?

Clean the cooled stone with warm water and the included scraper; avoid soap and never season the cordierite with oil. Over time the stone may develop darkened or stained areas from baked-on residue—this cosmetic change won’t affect performance.

• Scrape away loose food with the supplied plastic scraper
• Hand wash cooled stone with warm water only; no detergent
• Do not oil, season, or soak the stone—cordierite does not need grease
• Natural discoloration is normal and does not indicate damage

Who is this for: The Unicook 13" x 13" pizza stone is ideal for home chefs and pizza enthusiasts who want pizzeria-style bottoms from an oven or compatible outdoor pizza cooker. It suits bakers making artisan loaves, cookie lovers seeking even browning, and small households using 12" class pizza ovens—anyone who prioritizes a crisp crust and reliable, even baking.