American Metalcraft · Pizza Stones & Baking Surfaces
PSB1416 Rectangular Pizza Baking Stone 16" x 14", Is It Non-Toxic?
Lower concern. Bare stone baking surface, no known PFAS risk.
Pizza baking stones are typically uncoated cordierite or ceramic. This product has no nonstick coating or water-repellent finish, so PFAS use is unlikely.
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 PSB1416 Rectangular Pizza Baking Stone non-toxic? What it is made of
This baking stone is cordierite, a naturally occurring magnesium-aluminum silicate mineral fired into a dense ceramic tile. Cordierite is chemically inert when uncoated and does not leach metals or organic compounds into food under normal baking temperatures (typically 400-500°F). The material's porous structure allows moisture to evaporate from pizza bottoms, creating a crispy crust; it is not treated with glazes, enamels, or synthetic coatings that could degrade or release contaminants.
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 material fracture
Cordierite stone can crack if exposed to rapid temperature changes or thermal stress, particularly if preheating is skipped or water contact occurs on a hot stone. Fracture risk is material-inherent, not a manufacturing defect, and is managed through proper use.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Lead
Cordierite is not typically a source of lead or cadmium leaching. No recalls or test reports documenting metal contamination in American Metalcraft cordierite baking stones are on record.
Source, ATSDR ↗Coating degradation and flaking
This product is uncoated by design. No enamel, glaze, or synthetic surface treatment is applied, eliminating the risk of coating breakdown or particulate contamination over time.
Teflon-type coating fume release
Cordierite stone contains no Teflon-type coating or non-stick polymers. This hazard does not apply to this product.
Aluminum leaching
Cordierite baking stones are not aluminum-based and do not present aluminum leaching risk. This hazard is not relevant to this material class.
How is this PFAS grade calculated?
The brand's record and disclosure
American Metalcraft is a long-established cookware and foodservice supplier with no public safety recalls or disclosed PFAS content for this product line. The brand does not publish detailed material safety or third-party certification statements for stone baking products. No evidence of formal testing for heavy metals or compliance claims beyond standard foodservice material expectations is available on record.
How it compares in its category
Cordierite pizza stones are a category standard and represent a lower-concern alternative to ceramic tiles with glazes, non-stick coatings, or metal baking sheets. Uncoated stone products avoid the risk of coating degradation, Teflon-type coating fume release, or aluminum leaching seen in some coated cookware. Among pizza stone options, cordierite without surface treatment is regarded as a conventional baseline choice with minimal known hazard profile.
If you buy it
Pre-heat the stone slowly to avoid thermal shock and cracking; do not immerse in water or expose to abrupt temperature swings. Acceptable for oven use up to the manufacturer's stated temperature limit (typically 500°F+); higher temperatures or broiler use risk fracture. If the stone visibly cracks, chips, or shows significant surface erosion after extended use, replacement is advisable to avoid debris in food. Clean with a dry brush or warm water without detergent; avoid soaking.
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 PSB1416 Rectangular Pizza Baking Stone 16" x 14"?
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.
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.