"Ceramic" nonstick isn't ceramic

Last reviewed July 2026.

The word "ceramic" on a modern nonstick pan is a texture description, not a materials one: it is an aluminium pan under a thin silica-based sol-gel coating. That is the category's genuine advantage — Consumer Reports' 2022 screen for 96 PFAS compounds found zero of them in the two ceramic-coated pans it tested. Knowing what the coating actually is explains both why these pans exist and why the claims around them need checking.

What a "ceramic" pan actually is

Almost every pan sold as ceramic nonstick — Caraway, GreenPan, Our Place, Carote, the lot — is an aluminum pan with a thin silica-based "sol-gel" coating. Sol-gel is a liquid glass-like layer: silicon-based precursors (the GreenPan Thermolon patent family, for instance, describes silanes such as tetraethoxysilane and methyltrimethoxysilane) are applied and cured into a hard, slick surface. It is applied like paint and cured, not fired in a kiln. Calling it "ceramic" is marketing shorthand for "hard, mineral, not Teflon".

What it is not

• Not PTFE. This is the category's genuine advantage: a sol-gel coating contains no fluoropolymer, so a properly made one has no PFAS to shed — and Consumer Reports' 96-PFAS screen found exactly zero in the two ceramic-coated pans it tested (CR, Oct 2022). "Properly made" is the caveat — which is why who published the test is our whole site.
• Not kiln-fired ceramic. True all-ceramic cookware — Xtrema is the notable brand — is solid fired ceramic with no metal core and no applied coating. Different product, different trade-offs, different (and in Xtrema's case published) test story: see our Xtrema page.
• Not forever. Sol-gel surfaces lose their release faster than PTFE — often within a year or two of daily use. That's a durability fact, not a safety one, but it drives the replace-often economics of the category.

The claims worth checking on any "ceramic" pan

• "PTFE-free / PFAS-free" — usually true of real sol-gel, but it's a claim: HexClad's "hybrid" pans looked ceramic-adjacent and were PTFE, and budget listings use "granite" and "ceramic" as pure aesthetics. If the composition isn't disclosed and nothing is published, the honest reading is "don't know" — our unverified tier.
• "Free of lead and cadmium" — sol-gel itself doesn't need them, but pigmented coatings and enamels can contain them, which is what leach testing is for. Published examples: Caraway and Made In publish heavy-metal results; Carote cites SGS numbers without publishing the reports.
• "Non-toxic" — there is no cookware-specific standard or certification behind the phrase, but the advertising claim is not unregulated: the FTC's Green Guides (16 CFR 260.10) require competent and reliable scientific evidence that a product is non-toxic for humans and for the environment, or a clear and prominent qualification. Treat an unqualified "non-toxic" as a slogan until a published test says otherwise.

Common questions

Is ceramic nonstick cookware actually ceramic?
No. Almost every pan sold as ceramic nonstick — Caraway, GreenPan, Our Place, Carote — is an aluminium pan with a thin silica-based sol-gel coating: silicon precursors applied like paint and cured into a hard, slick surface, not fired in a kiln. True all-ceramic cookware, of which Xtrema is the notable brand, is solid fired ceramic with no metal core and no applied coating.

Does ceramic nonstick contain PFAS?
A sol-gel coating contains no fluoropolymer, so a properly made one has no PFAS to shed. Consumer Reports' 2022 screen for 96 PFAS compounds found exactly zero of them in the two ceramic-coated pans it tested. “Properly made” is the caveat: HexClad's hybrid pans looked ceramic-adjacent and were PTFE, and budget listings use “granite” and “ceramic” as pure aesthetics.

How long does ceramic nonstick last?
Sol-gel surfaces lose their release faster than PTFE, often within a year or two of daily use. That is a durability fact rather than a safety one, but it drives the replace-often economics of the category.

Is “non-toxic” a regulated term for cookware?
There is no cookware-specific standard or certification behind the phrase, but the advertising claim is not unregulated: the FTC's Green Guides at 16 CFR 260.10 require competent and reliable scientific evidence that a product is non-toxic for humans and for the environment, or a clear and prominent qualification. Treat an unqualified “non-toxic” as a slogan until a published test says otherwise. “Free of lead and cadmium” is checkable: sol-gel itself does not need them, but pigmented coatings and enamels can contain them, which is what leach testing is for.

See which ceramic brands publish their proof →

We do not test cookware — we index published third-party results and public records, with attribution, and make no health claims. Patent citations describe published patent documents, not product composition claims by us.