Primo Grills · Pizza Stones & Baking Surfaces
Baking Stone, Glazed Ceramic 13-in for XL 400, LG 300, JR 200, Kamado - PG00340, Is It Non-Toxic?
Plain glazed ceramic baking stone carries minimal fluorochemical risk.
Glazed ceramic baking stones don't use PFAS in their glazes, and Lodge hasn't disclosed any Teflon-family coating coatings. The material itself is lower-risk than nonstick cookware.
The better-graded swap
Deluxe Square Pizza Stone with Rack
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
Glazed ceramic
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is Baking Stone, Glazed Ceramic 13-in PG00340 non-toxic? What it is made of
This is a solid ceramic stone with a glazed surface, designed to absorb and distribute heat evenly in Kamado-style ovens. Ceramic itself is inert at baking temperatures (under 900°F). The glaze is a glass-like coating that seals the porous ceramic body and prevents direct food contact with raw clay. Lodge has not disclosed specific glaze formulations for this model, but plain ceramic glazes used on food-contact bakeware typically contain feldspar, silica, and clay with minimal heavy metal pigments.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Glaze degradation and ceramic cracking over time
Ceramic is prone to thermal shock if heated or cooled rapidly, which can cause visible cracks in the glaze and underlying ceramic. Once cracked, the stone can absorb moisture and develop spalling. This is a durability concern rather than a chemical safety issue but may allow food contact with unglazed ceramic after damage.
Bacterial growth or mold on porous ceramic surface
Unglazed or chipped ceramic can harbor moisture and microbial growth if stored damp. The glaze on this stone is intended to prevent absorption, but cracks or chips can compromise that seal. Proper drying and storage in a low-moisture environment minimizes risk.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Lead
No documented lead or cadmium contamination in Lodge ceramic bakeware. Plain ceramic glazes used in food-contact cookware are formulated to meet FDA limits. Lodge does not disclose glaze composition for this model, so independent verification is not publicly available.
Source, ATSDR ↗Aluminum or metal leaching from ceramic body
Ceramic baking stones do not contain added aluminum and are not designed to leach metal. The clay body may contain trace minerals, but firing seals the structure. No evidence of leaching from ceramic pizza stones into food has been documented in safety literature.
Heavy metals
This stone is described as glazed ceramic in a neutral finish; no decorative pigments or high-color coatings are mentioned. Plain glazes used on functional cookware typically avoid chromium or other restricted pigments. Lodge does not disclose specific pigment use for this model.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Lodge Cast Iron is a legacy American cookware manufacturer known for cast iron and enameled products. The company does not publish PFAS or heavy metal testing data for ceramic baking stones on its website. Lodge maintains some third-party certifications for cast iron (FDA compliance) but has not pursued formal certifications specific to glaze safety for this ceramic product. No major recalls or safety controversies are on record for Lodge ceramic baking stones.
How it compares in its category
Glazed ceramic pizza stones show lower concern for shedding or leaching because they are fired at high temperature, making the glaze very stable under normal use. This contrasts with non-stick surfaces (which may release Teflon-type coating fumes if overheated) or unglazed ceramic (which can absorb water and crack). Lodge's version is competitively priced and sized for large ovens; it occupies the middle-to-mainstream segment of the ceramic bakeware market.
If you buy it
Preheat gradually to avoid thermal shock and cracking. Do not exceed 900°F, which is well above typical pizza-stone use (600-800°F). Inspect the glaze surface for chips or cracks before each use; discard if large cracks develop, as moisture can then enter the ceramic body and cause spalling. Clean with hot water only; avoid soap or abrasive scrubbing that may dull the glaze. Store in a dry location to prevent water absorption.
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
- Primo Grills has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Baking Stone, Glazed Ceramic 13-in for XL 400, LG 300, JR 200, Kamado - PG00340?
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.