King Arthur Baking Review, Is King Arthur Baking Non-Toxic?
King Arthur Baking averages 48 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 King Arthur Baking products graded as of November 2026, and 3 of them reach its 70 point pass mark.
King Arthur Baking grades Poor 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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- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
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- RO membrane, carbon filters, stainless steel housing
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- Bacterial and microbial growth in housing and filters
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
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Does King Arthur Baking have PFAS, by category
Which King Arthur Baking products are PFAS-free? Good or better, best-graded first
- Carbon steel with food-grade mineral oil seasoning
- We found no PFAS statement from the brand
- Iron leaching. Carbon steel can release trace iron ions into food, especially acidic foods or liquids; this…
3 hazards checked on this product, all on its full breakdown.
- Silicone mat
- We found no PFAS statement from the brand
- Silicone leaching (oligomers). Food-grade silicone can release small cyclic oligomers at high heat (above…
3 hazards checked on this product, all on its full breakdown.
King Arthur Baking
Amazon.com : King Arthur, Pre-Cut Natural & Unbleached Baking Parchment Paper, Heavy Duty, Nonstick, Reusable, Resealabl
- unbleached parchment paper
- We found no PFAS statement from the brand
- Silicone coating degradation at high heat. Silicone surface can break down above 420, 450°F, potentially…
2 hazards checked on this product, all on its full breakdown.
Which King Arthur Baking products contain PFAS? Poor and Bad, we’d swap these
- Silicone (no Teflon-family coating or Teflon-type coating)
- We found no PFAS statement from the brand
- Microabrasion and particulate shedding. Aggressive scrubbing or contact with sharp utensils may cause…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- paper with silicone and/or wax coating
- We found no PFAS statement from the brand
- PFAS. Unspecified coating composition means non-fluorinated silicone or wax components could migrate into…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Cellulose with waterproof coating (type unspecified)
- We found no PFAS statement from the brand
- Fluorocarbon/silicone coating migration at heat. Unidentified waterproof coating on cellulose carries risk of…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonKing Arthur Baking
Amazon.com : King Arthur Flour Precut Baking Parchment Paper, Heavy Duty, Professional Grade, Nonstick, Reusable, Reseal
- Bleached paper with nonstick coating, composition unspecified
- We found no PFAS statement from the brand
- PFAS. Coating chemistry is not disclosed by the manufacturer. If silicone-based, risk is lower; if…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- paper with water-repellent coating, composition unspecified
- We found no PFAS statement from the brand
- PFAS. Without disclosure of fluorocarbon vs. silicone treatment, PFAS content cannot be ruled out. This is…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonWhat to buy instead Good or better, in the categories King Arthur Baking sells
- Steel with PFA-free nonstick coating
- The brand calls it PFAS-free, which we have not verified
- Nonstick coating degradation over time
3 hazards checked on this product, all on its full breakdown.
- plastic tube with replaceable hollow-fiber filter cartridge
- The brand calls it PFAS-free, which we have not verified
- Bacterial growth in filter and housing if unmaintained
2 hazards checked on this product, all on its full breakdown.
- silicone-coated parchment paper
- The brand calls it PFAS-free, which we have not verified
- Paper degradation and particulate shedding
King Arthur Baking and PFAS, common questions
- Does King Arthur Baking have PFAS?
- King Arthur Baking averages 48 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 King Arthur Baking products graded as of November 2026, and 3 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is King Arthur Baking non-toxic?
- King Arthur Bread and Pizza Stone is the highest-graded King Arthur Baking 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 King Arthur Baking products are lower concern for PFAS?
- The highest-graded King Arthur Baking products we have scored are King Arthur Bread and Pizza Stone, King Arthur Baking Company Rolling Mat, Amazon.com : King Arthur, Pre-Cut Natural & Unbleached Baking Parchment Paper, Heavy Duty, Nonstick, Reusable, Resealabl. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which King Arthur Baking products should I avoid?
- The lowest-graded King Arthur Baking products we have scored are Amazon.com: King Arthur Baking Company: Parchment Paper, Amazon.com : King Arthur Flour Precut Baking Parchment Paper, Heavy Duty, Professional Grade, Nonstick, Reusable, Reseal, King Arthur Flour Precut Baking Parchment Paper Sheets. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →