Broil King · Pizza Stones & Baking Surfaces
Monarch and Royal Square Pizza Stone 69821
Lower PFAS concern. Pizza stones are typically bare stone without coatings.
Broil King pizza stones are made from cordierite, an uncoated ceramic material. No surface treatments or nonstick coatings suggest lower PFAS risk profile.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Cordierite stone, uncoated
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is Monarch and Royal Square Pizza Stone 69821 non-toxic? What it is made of
This pizza stone is cordierite, a naturally occurring magnesium alumino-silicate mineral fired into a rigid, porous ceramic form. Cordierite is chosen for pizza stones because it resists thermal shock (rapid temperature changes) and distributes heat evenly. As an uncoated product, there is no glaze, enamel, or synthetic coating layer that could degrade, leach, or off-gas during cooking. The porous structure absorbs and releases moisture, which is the intended function for crisping pizza crusts.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Thermal shock and cracking
Cordierite is designed to resist thermal shock, but rapid temperature changes or placing a cold stone directly on a hot surface can still cause micro or macroscopic fractures. Visible cracks can propagate and shed ceramic fragments into food.
Microcracking and food particle entrapment
The porous surface naturally traps oils, moisture, and food particles over time. Microscopic fractures from thermal stress or impact can harbor bacteria if not dried thoroughly after use. Regular air-drying is recommended.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Lead
This product is uncoated and fired cordierite. No glaze or enamel overlay is present. Cordierite ores are generally low in lead and cadmium contaminants, and no recalls or testing showing measurable leaching from this model are documented.
Source, ATSDR ↗Fluorine-based coatings or treatments
No coating or water-repellent surface treatment is named or implied for this uncoated stone product. Cordierite itself does not require Teflon-type coating or other fluorinated treatments to function.
The full breakdown
The brand's record and disclosure
Broil King is a Canadian outdoor cooking equipment manufacturer owned by Tristar Products. No public controversies, recalls, or material safety disclosures specific to this pizza stone model are on record. The brand does not publish detailed PFAS or heavy-metal testing data for cookware, and no independent third-party testing of this specific model is documented in public sources. Standard cookware liability and food-contact compliance are assumed under North American manufacturing standards.
How it compares in its category
Cordierite pizza stones are the industry standard for home use and rank lower in concern compared to ceramic-coated steel, cast iron with enamel overlays, or stoneware with decorative glazes, all of which carry small risks of glaze-metal leaching or coating degradation. Bare cordierite avoids the unknown formulation of glazes and enamels used by some competitors. This product sits in the mainstream segment and is functionally equivalent to other uncoated cordierite stones on the market.
If you buy it
Soak the stone in cool water for 15 minutes before first use to allow gradual hydration and reduce risk of cracking from rapid heating. Place it in a cold oven, then heat to your target temperature slowly; never apply direct flame or extreme temperature swings. Expect the porous surface to gradually accumulate carbonized residue from oils and food; this is normal and does not require aggressive scrubbing. Replace only if visible cracks develop, as small fractures can propagate during heating and potentially shed fragments.
What we don’t know
- Basis
- Model estimate, 88% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Broil King has made none
Formulations change between production runs, so check the current label. How we grade.
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More pizza stones & baking surfaces grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.