Old Stone Review, Is Old Stone Non-Toxic?
Old Stone averages 68 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Old Stone products graded as of October 2026, and 1 of them reach its 70 point pass mark.
Old Stone grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Which Old Stone products are PFAS-free? Good or better, best-graded first
Old Stone
Amazon.com: Old Stone Pizza Kitchen Rectangular Pizza Stone for Oven and Grill, 14x16-Inch : Patio, Lawn & Garden
- cordierite ceramic stone
- We found no PFAS statement from the brand
- Ceramic cracking and fragmentation. Cordierite pizza stones are engineered for thermal shock tolerance but…
2 hazards checked on this product, all on its full breakdown.
Which Old Stone products contain PFAS? Poor and Bad, we’d swap these
Old Stone
Kitchen | Old Stone Pizza Stone Round 16 Inch Bread Baking Stone New In Box | Color: Tan | Size: Os
- Natural ceramic stone, uncoated
- We found no PFAS statement from the brand
- Thermal shock and fracturing. Uncoated ceramic pizza stones are brittle and can crack if exposed to rapid…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Glazed cordierite stone (ceramic mineral)
- We found no PFAS statement from the brand
- Thermal shock and cracking (structural failure). Cordierite is durable but can crack if subjected to rapid…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonOld Stone and PFAS, common questions
- Does Old Stone have PFAS?
- Old Stone averages 68 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Old Stone products graded as of October 2026, and 1 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Old Stone non-toxic?
- Amazon.com: Old Stone Pizza Kitchen Rectangular Pizza Stone for Oven and Grill, 14x16-Inch : Patio, Lawn & Garden is the highest-graded Old Stone product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Old Stone products are lower concern for PFAS?
- The highest-graded Old Stone products we have scored are Amazon.com: Old Stone Pizza Kitchen Rectangular Pizza Stone for Oven and Grill, 14x16-Inch : Patio, Lawn & Garden. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Old Stone products should I avoid?
- The lowest-graded Old Stone products we have scored are Old Stone Glazed Cordierite Square Pizza Stone 4 Piece Set, Old Stone Kitchen | Old Stone Pizza Stone Round 16 Inch Bread Baking Stone New In Box | Color: Tan | Size: Os. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →