Outspark 13.2" Square Cordierite Pizza Stone for Ooni Karu Koda Fyra 12 — High-Heat, Fast-Crisp Baking Surface

The Outspark 13.2" square cordierite pizza stone is a heavy-duty baking surface sized to fit Ooni Karu 12, Ooni Koda 12, Ooni Fyra 12 and similar ovens and grills for crisp, evenly baked pizzas and hearth-style breads.

Designed for backyard pizza chefs who want professional results without complicated gear, this 13.2" x 13.2" x 0.4" stone brings stable heat retention and a natural non-stick surface to wood-fired, gas or charcoal ovens. Made from high-density cordierite, it tolerates rapid temperature changes, supports very high heat (up to 1400°F), and works equally well on grills, in conventional ovens, or inside portable pizza ovens like Ooni and Uuni models.

How will this stone change my pizza baking results?

The cordierite plate conducts and stores heat evenly so crusts bake quickly and develop a crisp bottom without scorching. Because it stabilizes oven temperature and wicks moisture away from dough, you’ll get a chewier interior with a light, blistered exterior more reliably than on sheet pans.

• Even heat distribution across the entire 13.2" surface for consistent browning
• Fast bottom crisping while preserving a tender crumb
• Works with very high temperatures achievable in portable ovens

Will it fit my Ooni or similar portable pizza oven?

This square stone is cut to match the footprint of many 12" class pizza ovens including Ooni Karu 12, Ooni Koda 12, Ooni Fyra 12, Volt 12, and compatible Uuni models. Its 0.4" thickness balances heat capacity and rapid recovery between bakes.

• Dimensions: 13.2" x 13.2" x 0.4"—designed for 12" ovens with square hearths
• Can be used directly inside ovens or placed on grills and in conventional ovens
• Check oven specs before use for clearance and recommended loading

How do I care for and clean the Outspark cordierite stone?

Cleaning is simple: allow the stone to cool fully, scrape off residue, and rinse with warm water. Avoid soaps and soaking; cordierite is porous and absorbs detergents which can affect flavor. With proper care it will last for years of regular use.

• Cool completely before handling to prevent thermal shock
• Scrape stuck-on food with a spatula, then wipe or rinse—no soap
• Avoid sudden temperature changes and long soaking to protect the stone

What else can I cook on this stone besides pizza?

Think beyond pizza: this cordierite plate is ideal for hearth breads, flatbreads, cookies and any dough-based items that benefit from a hot, even baking surface. It can also crisp vegetables or re-crisp frozen pastry with superior results compared to metal pans.

• Breads and focaccia that need a fast oven spring and crisp bottom
• Flatbreads, pita, and naan ready in a minute or two in high heat
• Cookies and roasted vegetables that gain from steady contact heat

Who is this for? The Outspark 13.2" cordierite pizza stone is aimed at home cooks and outdoor chefs who own Ooni or similar compact pizza ovens, grill users who want a reliable baking surface, and anyone who regularly bakes dough-based foods and wants improved texture and consistency. It’s also a practical gift for pizza lovers who appreciate simple, durable tools that elevate results without complex setup.