The Best Non-Toxic Pizza Stones of 2026
127 of the 152 pizza stones PFAS Authority has graded score below its 70 point pass mark for PFAS and other toxins, 83.6% of the category, as of October 2026, leaving 25 that pass. The highest graded is 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100.
Every grade below is built from published materials, ingredient lists, certifications and brand disclosures, scored on one public rubric and ranked best-graded first. Each score links to the full breakdown of what earned it, and the numbers across the whole dataset are published too.
Are pizza stones non-toxic?
25 of the 152 pizza stones we graded clear our screen and 127 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on pizza stones in this category are microplastics, lead, VOCs and off-gassing, aluminium leaching, heavy metals. The highest graded here is 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100.
Quick picks
Best overall
15-Inch Ceramic Pizza Stone for Perfect Crispy CrustsHighest PFAS grade in the category
90 Excellent
No coating to fail
Baking Steel The Original Ultra Conductive Pizza StoneNothing applied that can break down
75 Excellent
Brand states its position
Deluxe Square Pizza Stone with RackThe brand has published a PFAS statement we can quote
90 Excellent
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 ranking come from.
The winner
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.
What it beats, and why
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
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
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.
What to watch for in pizza stones
Beyond the PFAS grade, these are the things our graders recorded on the 152 pizza stones in this category. We assess from materials, brand statements and published research. We do not lab-test.
- Microplastics
Plastic fragments small enough to shed from a product into food, water or air without anyone seeing it.
Found on 1 of these pizza stones. Plausible but unconfirmed on 27 more, meaning nobody has ruled it out. EPA
- VOCs and off-gassing
Volatile compounds that evaporate out of a material at room temperature, which is what a new product smell is.
Plausible but unconfirmed on 13 more, meaning nobody has ruled it out. EPA
- Aluminium leaching
Aluminium migrating out of cookware, bakeware or an antiperspirant into food or skin.
Plausible but unconfirmed on 6 more, meaning nobody has ruled it out. ATSDR
- Heavy metals
Metals such as antimony, nickel and chromium migrating from a material into what touches it.
Plausible but unconfirmed on 4 more, meaning nobody has ruled it out. ATSDR
The safest pizza stones we graded, lowest PFAS risk first
- 1
Highest grade here
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts
90ExcellentPFAS grade- 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.
- 2
Deluxe Square Pizza Stone with Rack
90ExcellentPFAS grade- 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.
- 3
No coating to fail
- 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 Amazon - 4
No coating to fail
Cooking Steel 16"x16"
75ExcellentPFAS grade- carbon steel, uncoated
- We found no PFAS statement from the brand
- Rust and iron leaching
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon - 5
- cast iron, seasoned with oil
- Iron leaching
2 hazards checked on this product, all on its full breakdown.
- 6
No coating to fail
- cast iron (bare or seasoned with oil)
- Oil rancidity in seasoning layer
2 hazards checked on this product, all on its full breakdown.
- 7
- Cordierite ceramic pizza stone
- We found no PFAS statement from the brand
- Ceramic thermal shock and cracking
2 hazards checked on this product, all on its full breakdown.
- 8
No coating to fail
- Carbon steel plate, uncoated
- We found no PFAS statement from the brand
- Iron leaching
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
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All the pizza stones that pass, side by side
Sorted by score. A higher score means lower PFAS risk. Scored against 3 hazards that apply to this category.
| # | Pizza Stones | Score | Rating | Made of | Key concern |
|---|---|---|---|---|---|
| 1 | 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts | 90 | Excellent | Ceramic (clay-based baking stone) | Glaze degradation and surface leaching |
| 2 | Deluxe Square Pizza Stone with Rack | 90 | Excellent | ceramic or unglazed stone; no nonstick coating | Ceramic or stone cracking and fragmentation |
| 3 | Baking Steel The Original Ultra Conductive Pizza Stone | 75 | Excellent | carbon steel (bare metal, no coating) | Rust and corrosion |
| 4 | Cooking Steel 16"x16" | 75 | Excellent | carbon steel, uncoated | Rust and iron leaching |
| 5 | Lodge 15 Inch Cast Iron Pizza Pan | 75 | Excellent | cast iron, seasoned with oil | Iron leaching |
| 6 | Lodge Cast Iron Baking Pan 14" | 75 | Excellent | cast iron (bare or seasoned with oil) | Oil rancidity in seasoning layer |
| 7 | American Metalcraft PSB16 16 Inch Round Pizza Stone Black | 75 | Excellent | Cordierite ceramic pizza stone | Ceramic thermal shock and cracking |
| 8 | VEVOR Pizza Steel 1/4" Pizza Steel Plate for Oven | 75 | Excellent | Carbon steel plate, uncoated | Iron leaching |
The verdict on pizza stones
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts grades 90 out of 100, the highest here. It is ceramic (clay-based baking stone). The brand calls it PFAS-free, which we have not verified.
Choose Deluxe Square Pizza Stone with Rack instead if you want a second option at 90 out of 100, ceramic or unglazed stone; no nonstick coating.
We hold no price data, so nothing here is a budget recommendation. Grades are model-based assessments from published materials and disclosures, not laboratory tests.
The pizza stones we would skip
Lowest scoring in this category, worst first, with the reason.
- 15Granitestone Piezano 3-Piece Pizza Stone Bake & Serve SetBad
Non-stick coating degradation (Teflon-type coating fume risk if present)
- 15Tramontina 12.5” Ceramic Pizza Pan Metallic Copper Non Stick In Pristine CondBad
Ceramic coating degradation and underlying metal exposure
- 15Easylife Tech Non-Stick Ceramic Pizza Stone for Grill and Oven with HandlesBad
Ceramic coating degradation and particle release
What we check on pizza stones
- Heavy metals. Lead, cadmium, arsenic and others that accumulate in the body. FDA
- Lead. A heavy metal with no safe exposure level, especially for children. ATSDR
- Cadmium. A toxic heavy metal found in some glazes, pigments, and batteries. ATSDR
Full point-by-point rubric on the methodology page.
The pizza stones brands we found no PFAS statement from
We found no PFAS statement from 26 of the brands here. That is our research, not proof a brand has never said anything, and it is not evidence of harm. It is why none of them score well on disclosure.
American Metalcraft, Baking Steel, Bayou Classic, Broil King, Char-Broil, Charcoal Companion, Emerson Creek Pottery, Emile Henry, Fox Run, Granite Ware, Granitestone, Grill Mark.
The brands that have published something, and what each of them actually said, are in our record of what every brand has said about PFAS.
Common questions about PFAS in pizza stones
Are pizza stones PFAS free?
127 of the 152 pizza stones PFAS Authority has graded score below its 70 point pass mark for PFAS and other toxins, 83.6% of the category, as of October 2026, leaving 25 that pass. The highest graded is 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100. The lowest graded is Granitestone Piezano 3-Piece Pizza Stone Bake & Serve Set at 15 out of 100.
Are pizza stones non-toxic?
25 of the 152 pizza stones we graded clear our screen and 127 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on pizza stones in this category are microplastics, lead, VOCs and off-gassing, aluminium leaching, heavy metals. The highest graded here is 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100.
Which are the safest pizza stones to buy?
On our grades, 15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts at 90 out of 100, which we band as Excellent. Then Deluxe Square Pizza Stone with Rack at 90. These are model-based assessments from published materials, ingredient lists, certifications and disclosures, not laboratory tests, so treat them as the lowest risk we can evidence rather than a safety guarantee.
Which pizza stones grade best for PFAS?
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts, at 90 out of 100, which we band as Excellent. It is ceramic (clay-based baking stone). The runner up is Deluxe Square Pizza Stone with Rack at 90.
Which pizza stones should I avoid?
The three lowest scoring we hold are Granitestone Piezano 3-Piece Pizza Stone Bake & Serve Set at 15, Tramontina 12.5” Ceramic Pizza Pan Metallic Copper Non Stick In Pristine Cond at 15, Easylife Tech Non-Stick Ceramic Pizza Stone for Grill and Oven with Handles at 15. The problem with the first is that lower PFAS concern for stone; coating composition unconfirmed.
How can you tell if pizza stones contain PFAS?
In this category we check for heavy metals, lead, cadmium. Lead, cadmium, arsenic and others that accumulate in the body. Language like stain resistant, water repellent or easy release usually means fluorinated chemistry even when PFAS is never printed on the box.
Which pizza stones brands have not published a PFAS statement?
We found no PFAS statement from 26 of the brands we scored in this category, including American Metalcraft, Baking Steel, Bayou Classic, Broil King, Char-Broil, Charcoal Companion. That is what our research turned up, not proof a brand has never said anything, and a missing statement is not evidence of harm. It is the reason those brands cannot score well on disclosure.
Do you lab test pizza stones?
No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.
More everyday goods categories we have graded
Same rubric, same scale. These are the categories closest to pizza stones.
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Does a particular brand of pizza stones have PFAS?
Brands we grade across the catalogue
Everything we have scored from these brands, not just pizza stones.
We also wrote this up at length. PFAS in Pizza Stones and Pizza Steels, 141 Graded
Want to filter the whole category yourself? Browse all 152 pizza stones.