American Metalcraft · Pizza Stones & Baking Surfaces
American Metalcraft stone14 Pizza Stone, Is It Non-Toxic?
Lower-concern choice with traditional stone cookware carrying no known PFAS risk.
American Metalcraft's pizza stone is made from natural ceramic or cordierite with no nonstick or coating systems that would introduce PFAS. Stone cookware needs no waterproofing or Teflon-family coating.
The better-graded swap
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts
90/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Natural stone (cordierite/clay blend)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is American Metalcraft stone14 Pizza Stone non-toxic? What it is made of
The American Metalcraft stone14 is constructed from a cordierite and clay blend, which is a traditional ceramic composite engineered for thermal shock resistance. Cordierite is a naturally occurring magnesium aluminum silicate mineral with high heat tolerance and minimal porosity, making it inherently stable when exposed to repeated heating and cooling cycles. This material does not rely on synthetic coatings, glazes, or polymeric binders that might degrade or leach over time, unlike non-stick cookware or enameled surfaces.
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 fracture or spalling
Rapid thermal shock (placing cold stone directly on hot burners or dunking in water) can cause cracking. This is a mechanical failure risk, not a toxicological hazard, but renders the product unsafe for food contact if large chips separate.
Microporosity and bacterial/mold growth
Like all porous stone, this product can trap moisture and food particles in fine pores if stored in humid conditions or if cleaned improperly. Proper air drying and storage in low-humidity environments mitigates this low risk.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Lead
Cordierite and food-grade clay used in pizza stones do not typically contain lead or cadmium at detectable levels. No recalls or contamination reports exist for American Metalcraft stone pizza pans.
Source, ATSDR ↗Glaze or enamel coating degradation
The American Metalcraft stone14 is unglazed natural stone with no synthetic coating, eliminating risks associated with glaze flaking or enamel breakdown over repeated heating cycles.
Aluminum leaching
While cordierite contains bound aluminum silicates, the material is chemically stable and does not leach aluminum into food under normal cooking conditions. No documented cases of elevated aluminum residues from cordierite pizza stones exist in the public literature.
How is this PFAS grade calculated?
The brand's record and disclosure
American Metalcraft (Espresso Supply) is a commercial-grade cookware supplier with decades of market presence but maintains minimal public-facing material safety disclosures or third-party certifications. No major recalls, contamination incidents, or safety violations are on record for this product line. The brand does not explicitly market PFAS-free status, but the material itself (uncoated natural stone) inherently contains no PFAS formulations.
How it compares in its category
Stone pizza stones present lower concern for PFAS exposure compared to non-stick (Teflon-type coating/PFOA-risk) or metal-with-glaze alternatives. Cordierite stones are preferred in commercial kitchens specifically because they are durable, chemically inert, and do not require maintenance coatings. This product is functionally equivalent to higher-priced branded alternatives (such as Emile Henry or Kamado Joe stone inserts) with no identified safety gap.
If you buy it
Preheat gradually to avoid thermal shock and cracking; do not expose a cold stone to direct heat or immerse it in water immediately after use. Wipe clean with a damp cloth after cooling; avoid soap and aggressive scrubbing, which can degrade the surface over many years. Replace only if visible cracks develop or the surface becomes deeply pitted and sticky food residue accumulates; these signs indicate loss of usability, not imminent safety failure. Store in a dry location to prevent mold or bacterial growth in any small pores.
What is not known about PFAS in this product?
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- American Metalcraft has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to American Metalcraft stone14 Pizza Stone?
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts
- Ceramic (clay-based baking stone)
- The brand calls it PFAS-free, which we have not verified
- Glaze degradation and surface leaching
3 hazards checked on this product, all on its full breakdown.
Deluxe Square Pizza Stone with Rack
- ceramic or unglazed stone; no nonstick coating
- The brand calls it PFAS-free, which we have not verified
- Ceramic or stone cracking and fragmentation
2 hazards checked on this product, all on its full breakdown.
- carbon steel (bare metal, no coating)
- We found no PFAS statement from the brand
- Rust and corrosion
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore 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.