PFAS65/ 100Good
Overall57/ 100Good
TT Baking Stone

· Pizza Stones & Baking Surfaces

TT Baking Stone, Is It Non-Toxic?

Good

Uncoated stone carries minimal fluorochemical risk.

Verdict · SkipUncoated ceramic baking stone with minimal known hazards; standard category safety profile and low PFAS risk support confident purchase.

This ceramic or stoneware stone has no nonstick or specialty coating, avoiding the main way PFAS enters cookware. The uncoated material itself poses minimal concern.

The better-graded swap

15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts

15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts

90/100 safety

90Excellent

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

ceramic or stoneware, no coating claimed

Lab data

No public lab test

You may also be interested in

Top-graded picks in the categories readers replace first, every one scored on the same rubric.

  • 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.

  • 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.

Avocado Vegan Mattress

Avocado

Vegan Mattress

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.

Is TT Baking Stone non-toxic? What it is made of

The TT Baking Stone is ceramic or stoneware, a fired clay product without applied glaze or enamel coating. This material is naturally inert when fired at high temperature and does not leach metals like lead or cadmium into food, assuming no decorative glaze is present. Uncoated ceramic avoids the coating-degradation hazard seen in some non-stick or enameled surfaces, making it chemically stable across repeated heating cycles.

What’s concerning

♾️

Category baseline

The starting point for this type of product, before anything specific to this product is counted.

70/ 100
♾️

No PFAS disclosure

No public statement from the brand about PFAS in this product.

85/ 100
⚠️

Thermal shock and mechanical cracking

Ceramic and stoneware are brittle; rapid temperature swings can cause cracks that may shed fragments into food or create safety hazards during handling.

70/ 100
⚠️

Microbial growth and porosity maintenance

Unglazed stoneware is porous and can harbor bacteria or mold if not dried thoroughly after washing, particularly in humid storage conditions.

70/ 100

What’s reassuring

✅

Base material not linked to PFAS

The main material recorded for this product is not one associated with PFAS.

100/ 100
🧠

Lead

No decorative glaze coating is claimed for this product. Uncoated stoneware does not present a known leaching risk for these metals.

Source, ATSDR ↗
95/ 100
✅

Coating degradation or flaking (if any finish is present)

Uncoated product carries no risk; however, any manufacturer-applied sealant or finish is undisclosed and not verifiable from public information.

95/ 100
✅

Off-gassing or volatile organic compounds (VOCs)

Fired ceramic does not off-gas VOCs at normal use temperatures; risk is negligible compared to some polymer or adhesive-based surfaces.

95/ 100

How is this PFAS grade calculated?

The brand's record and disclosure

The brand is a Brazilian cookware manufacturer owned by Grupo SEB and widely distributed in North America. The company does not publicly disclose detailed material safety testing or third-party certifications for individual baking surfaces. No significant safety recalls or regulatory actions specific to their ceramic baking stones are on record. Material specifications and sourcing details remain opaque, typical of mid-market kitchenware brands.

How it compares in its category

Ceramic and stoneware baking stones show lower concern for chemical risk than non-stick alternatives (which may release Teflon-type coating fumes if overheated) or glazed ceramics with unknown coating composition. The TT product sits in the mainstream commodity tier, comparable to store-brand unglazed stones from other major retailers. Price and durability reports suggest mid-range performance; premium artisanal stoneware and budget alternatives show similar hazard profiles.

If you buy it

Preheat the stone gradually to prevent thermal shock cracking, and do not expose it to sudden temperature changes. Avoid using oils or coatings that may smoke excessively at high heat; plain use or light flour dusting presents lower risk. Hand wash only and allow to air-dry fully before storage to prevent mold or bacterial growth in porous channels. Inspect annually for visible cracks or crazing; discontinue use if structural damage appears, as fragments may enter food.

What is not known about PFAS in this product?

Basis
Model estimate, 78% confidence, not a lab result
Lab test
None on record for this exact product
Brand statement
has made a specific claim

Formulations change between production runs, so check the current label. How we grade.

What are the PFAS-free alternatives to TT Baking Stone?

  • 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.

  • 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.

Baking Steel The Original Ultra Conductive Pizza Stone

Baking Steel

The Original Ultra Conductive Pizza Stone

75ExcellentPFAS grade
  • 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

More 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.