Emerson Creek Pottery · Pizza Stones & Baking Surfaces
Pizza Stone by Emerson Creek, Is It Non-Toxic?
Lower-concern purchase since pizza stones are inherently stone and don't require nonstick coatings.
Pizza stones are typically unglazed ceramic or natural stone without Teflon-family coating coatings or nonstick treatments. The brand provides no PFAS disclosure and no recalls are documented.
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
ceramic or unglazed stone (pizza stone)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is Pizza Stone by Emerson Creek non-toxic? What it is made of
Pizza stones marketed as ceramic or unglazed stone are typically fired clay (stoneware or ceramic composite) without synthetic coatings. Unlike nonstick cookware, they contain no Teflon-type coating, silicones, or fluorinated compounds. The porous surface absorbs and distributes heat evenly, and degradation risk is minimal because the material is chemically stable under normal oven temperatures (up to 500°F for most pizza stones). If glazed, the glaze must be food-safe, though most pizza stones sold today are explicitly unglazed to maximize heat absorption.
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.
Lead
If the pizza stone includes any glazed rim or decorative coating, lead or cadmium migration is theoretically possible depending on firing temperature and glaze formulation. Emerson Creek does not publish heavy metals testing; unglazed stones carry lower risk since they contact food only incidentally. No recalls or contamination reports are on record for this brand.
Source, ATSDR ↗Thermal shock and cracking
Rapid temperature changes cause pizza stones to crack, a common durability complaint across the category. This is a mechanical failure, not a toxicological hazard, but cracked stones should be discarded to avoid pottery fragments in food and to prevent further collapse.
Moisture absorption and mold growth
Unglazed ceramic is porous and absorbs water if not dried promptly or if stored in humid conditions. Mold or bacterial growth in the pores is not a documented risk for pizza stones used regularly in hot ovens, but improper storage or cleaning could create conditions for microbial colonization.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Microplastics
Ceramic pizza stones do not shed microplastics by design. Minor ceramic dust can occur if the surface chips or cracks, but this is a structural failure, not a chemical hazard. Unglazed ceramic is chemically stable and does not degrade into respirable particles under normal use.
Source, EPA ↗Teflon-type coating fume risk from nonstick coatings
This product is ceramic or stone without synthetic coatings, so Teflon-type coating off-gassing is not a concern. This is a key advantage over metal baking sheets with nonstick finishes.
How is this PFAS grade calculated?
The brand's record and disclosure
Artisan Bread Makers (Emerson Creek line) has no documented product recalls, safety violations, or third-party certifications on record. The brand does not publish detailed material sourcing or lead/cadmium testing disclosures, which is common for this category but represents a transparency gap. No controversies or customer safety incidents have been established in publicly available sources. This silence on material verification is typical for mid-market bakeware brands but differs from premium ceramic makers that provide COA (Certificate of Analysis) for heavy metals.
How it compares in its category
Pizza stones occupy a low-hazard segment compared to nonstick skillets or coated bakeware because they rely on thermal mass, not chemical coatings. Ceramic stones from this brand are positioned as a budget-friendly alternative to high-end Italian terracotta or expensive cordierite stones; the trade-off is less published safety data. Unglazed ceramic stones from mass-market makers typically perform identically to premium equivalents in terms of chemical safety, though durability and thermal performance vary. This product lacks standout safety features but also lacks known failure modes.
If you buy it
Preheat the stone gradually (25-30 minutes) to avoid thermal shock and cracking, which is a common failure mode but not a safety hazard. Hand-wash only; dishwasher exposure can cause water absorption and cracking over time. Do not use cooking sprays or oils directly on the stone surface; use parchment paper or a light dusting of cornmeal instead to prevent surface degradation and potential microparticulate release. Replace the stone if visible cracks develop, as they can trap moisture and compromise structural integrity during use, though this is a durability issue rather than a chemical concern.
What is not known about PFAS in this product?
- Basis
- Model estimate, 78% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Emerson Creek Pottery has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Pizza Stone by Emerson Creek?
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.