Non-Toxic Pizza Stones, ranked by PFAS grade

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95ExcellentPFAS grade

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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Aquasure

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100ExcellentPFAS grade

RO membrane, carbon filters, stainless steel housing
We found no PFAS statement from the brand
Bacterial and microbial growth in housing and filters

4 hazards checked on this product, all on its full breakdown.

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100ExcellentPFAS grade

✓ MADE SAFE Certified✓ Global Organic Textile Standard (GOTS)

organic cotton, natural latex, coconut coir, recycled steel coils
The brand calls it PFAS-free, which we have not verified
Heavy metals

2 hazards checked on this product, all on its full breakdown.

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What we found October 2026

122 of the 145 pizza stones PFAS Authority has graded score below its 70 point pass mark for PFAS and other toxins, 84.1% of the category, as of October 2026, leaving 23 that pass. The highest graded is 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100.

The full ranking is below, best-graded first, with every score linking to the evidence behind it.

Are pizza stones safe?

23 of the 145 pizza stones we graded come back low-concern on our screen and 122 do not. Our grades are model-based assessments built from published materials, ingredient lists, certifications and brand disclosures, not laboratory tests, so they say what we can evidence rather than that anything is safe.

Best graded pizza stones here

115-Inch Ceramic Pizza Stone for Perfect Crispy Crusts 90 out of 100
2Deluxe Square Pizza Stone with Rack 90 out of 100
3Baking Steel The Original Ultra Conductive Pizza Stone 75 out of 100

By materialCeramic Cast Iron Carbon Steel Uncoated

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The best non-toxic pizza stones & baking surfaces, ranked by grade

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Buyer’s guide

What to look for in pizza stones & baking surfaces, and which brands grade best and worst

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Bad · Better · Best

Pizza Stones & Baking Surfaces, ranked.

The quickest read, what to skip and the top-graded picks worth buying instead.

Avoid15Bad

Farberware

Pizza Crisper 13

15/100 safety

Skip until coating details confirmed; PFAS risk unclear.

Why avoid it

Better75Excellent

Lodge

15 Inch Cast Iron Pizza Pan

75/100 safety

Lower concern. Cast iron with oil seasoning, no coating on record.

Details Check price

Best pick90Excellent

15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts

90/100 safety

Brand PFAS statement on record, which we have not verified.

Details Find on Amazon

Why 15-Inch Ceramic Pizza Stone for Perfect Crispy wins, and what it beats

Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 3 products it beats, so you can see exactly where the 75 points between the top and the bottom of this pizza stones & baking surfaces ranking come from.

The winner

90Excellent

15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts

Made of Ceramic (clay-based baking stone).

+30Category baseline. The starting point for this type of product, before anything specific to this product is counted.
-10Brand-stated PFAS-free. The brand states this product is PFAS-free. We have not verified the claim.
-10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.

10risk points in total, which is a grade of 90

What the grade does not fix. Nothing specific to this product adds risk, so what remains is the category baseline that every product here starts from, and our graders recorded 3 other hazards on it. See the full breakdown.

Check price Full breakdown

What it beats, and why

75Excellent15 points behind the winner

Baking Steel The Original Ultra Conductive Pizza Stone

What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.

Made of carbon steel (bare metal, no coating).

+30Category baseline
+15No PFAS disclosure
-20Bare uncoated material. Recorded as a bare, uncoated material with no surface coating or treatment.

25risk points, a grade of 75

40Poor50 points behind the winner

Our Place Wonder Oven Baker’s Kit

What puts it behind. Non-stick, chemistry undisclosed, +40 points. Marketed as non-stick without stating the coating chemistry. The winner carries no such factor.

Made of Carbon steel and enameled cast iron with unspecified nonstick coating.

+40Non-stick, chemistry undisclosed
+30Category baseline
-10Brand-stated PFAS-free

60risk points, a grade of 40

15Bad75 points behind the winner

Granitestone As Seen On Tv Granitestone Piezano Replacement Stone

What puts it behind. Non-stick, chemistry undisclosed, +40 points. Marketed as non-stick without stating the coating chemistry. The winner carries no such factor.

Made of Stone-derived ceramic/mineral coating (unspecified).

+40Non-stick, chemistry undisclosed
+30Category baseline
+15Vague safety claims only. Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.

85risk points, a grade of 15

No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.