Kitchenaid · Pizza Stones & Baking Surfaces
Kitchenaid Wall Oven Baking Stone W10862028 20.50 x 15.75 x 1.50 Genuine OEM at Sears PartsDirect, Is It Non-Toxic?
Lower concern. Bare ceramic/stone baking stone, no nonstick coating.
Baking stones are typically uncoated ceramic or cordierite with no surface treatment, making them a lower PFAS concern than nonstick cookware. KitchenAid provides no PFAS disclosure, but the product category itself carries minimal risk.
The better-graded swap
Deluxe Square Pizza Stone with Rack
90/100 safety
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 stone, uncoated baking surface
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.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- 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
- 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 Kitchenaid Wall Oven Baking PartsDirect non-toxic? What it is made of
This KitchenAid baking stone is ceramic or cordierite-based stone, a fired mineral material without applied coatings or nonstick layers. Bare ceramic and stone are chemically inert at typical baking temperatures (up to 500F) and do not off-gas or leach synthetic chemicals. The material's primary risk profile involves thermal shock (cracking if exposed to rapid temperature swings) rather than chemical release.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Thermal shock and fracture
Ceramic and stone materials are prone to cracking if subjected to rapid temperature changes (e.g., moving from oven to wet counter). This is a mechanical rather than chemical hazard but can create sharp edges.
Microparticle shedding
With prolonged use and abrasive cleaning, unglazed ceramic or stone surfaces may shed microscopic particles into food. Risk is minimal with gentle care and appropriate cleaning methods.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Lead
No glaze or enamel coating is applied to this bare baking stone surface, eliminating the risk of heavy metal leaching from glazes common in some imported ceramics.
Source, ATSDR ↗Aluminum leaching
Ceramic and stone baking stones do not leach aluminum. This hazard applies only to metal bakeware or aluminum-containing composite cookware.
Coating degradation or food contact degradation
No applied coating is present on a bare baking stone, so there is no degradation pathway. Material itself is chemically stable at typical kitchen use temperatures.
How is this PFAS grade calculated?
The brand's record and disclosure
KitchenAid is owned by Whirlpool and maintains general product safety standards but does not publish detailed material safety disclosures or third-party certifications for baking stones. No recalls or chemical hazard complaints have been established for this specific OEM part. The brand's approach to cookware materials is typical for the appliance category, functional safety over transparency.
How it compares in its category
Uncoated ceramic or stone baking surfaces are not materials linked to PFAS. They carry none of the Teflon-type coating (Teflon) fume risks, lead/cadmium glaze concerns, or aluminum leaching issues associated with coated or metal baking vessels. This design represents a low-risk, durable alternative to nonstick or glazed ceramic pans.
If you buy it
Allow the stone to heat gradually to prevent thermal shock cracking; avoid placing cold wet items on hot surfaces. Do not use abrasive scrubbers that may damage the material surface; hand wash with mild soap and water. Replace if the stone develops large cracks or chunks missing. Ceramic and stone baking surfaces typically last many years with proper handling.
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
- Kitchenaid 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 Kitchenaid Wall Oven Baking Stone W10862028 20.50 x 15.75 x 1.50 Genuine OEM at Sears PartsDirect?
15-Inch Ceramic Pizza Stone for Perfect Crispy Crusts
- 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.
Deluxe Square Pizza Stone with Rack
- 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.
- 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 AmazonMore 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.