What “PTFE-free” doesn’t tell you

Three claims turn up on cookware boxes, they look like versions of the same promise, and they are not. One of them is close to meaningless. Here is what each actually commits the manufacturer to.

“PFOA-free” — almost certainly true, and almost certainly irrelevant

PFOA was a processing aid used in making PTFE. It was phased out under the EPA PFOA Stewardship Program, a voluntary agreement with eight manufacturers — Arkema, Asahi, BASF, Clariant, Daikin, 3M/Dyneon, DuPont and Solvay Solexis — targeting elimination by 2015. EPA’s wording is careful and so is ours: all participating companies state that they met the goals.

Two caveats worth keeping straight. The programme was voluntary, and it bound those eight companies — not importers, not non-participants — which is why the EPA needed a separate rule covering imported goods carrying long-chain PFAS coatings. And the completion is self-reported.

It also says nothing about whether the pan contains PFAS, because PFOA was one compound and PTFE — which is itself a PFAS — is another. What replaced PFOA were other fluorinated processing aids, the best known being GenX, for which EPA published a toxicity assessment in 2021 with liver effects as the critical endpoint. That is largely a manufacturing and water story rather than a residue-in-your-pan story, and we should not conflate the two.

“PTFE-free” — a real claim, but narrower than it sounds

This one means something: the specific fluoropolymer in Teflon is not in the coating. Ceramic sol-gel pans genuinely are PTFE-free.

What it does not rule out is every other PFAS — other fluoropolymers such as PFA or FEP, fluorinated additives, or PFAS elsewhere in the product. If a brand says PTFE-free and stops there, notice that it stopped there.

“PFAS-free” — the big one, and the hardest to stand up

To say a product is PFAS-free is to make a claim about analytical fact across a whole supply chain. Very few companies can actually evidence it, which is why you will so often find a different sentence sitting underneath the headline.

Watch for “no intentionally added PFAS”

Every state PFAS statute we checked is built on that phrase. Maine defines intentional addition as PFAS added “to provide a specific characteristic, appearance or quality or to perform a specific function”, and expressly includes any degradation by-products of those PFAS. What falls outside it: residual contamination, impurities, carryover from equipment or feedstock.

Some states put a number on it, though not always for cookware. Vermont defines regulated PFAS in textiles as intentionally added PFAS or total organic fluorine at or above 100 ppm, falling to 50 ppm in July 2027 — that is the level at which the ban bites, not a permitted dose. Washington presumes PFAS was intentionally added if total fluorine — not total organic fluorine — is detected above 50 ppm, and lets a manufacturer rebut that with credible evidence.

So a product can contain measurable fluorine and still be lawfully sold, and still carry the “no intentionally added PFAS” line. That is not necessarily a dodge — it is often the only claim a company can honestly verify from its own records. But it is a narrower promise than most people hear.

Two states have made overclaiming illegal

California’s AB 1200 does two things. It requires cookware makers to disclose designated-list chemicals on the product page and the label. And it forbids claiming cookware is free of a chemical belonging to a listed class unless no member of that class was intentionally added — enforced, per the California Attorney General’s advisory, with civil penalties and injunctive relief.

Colorado did both in sequence. From January 2024 cookware containing intentionally added PFAS had to carry specific labelling in English and Spanish with a QR code, and could not be advertised as “free of any PFAS chemicals” unless none were intentionally added. That labelling regime was written to repeal itself on 1 January 2026 — and on the same day an outright sales ban on such cookware took effect.

So the ban list as it stands: Minnesota from 1 January 2025, Maine and Colorado from 1 January 2026, Rhode Island from 2027, Vermont from July 2028. If you are wondering why every brand suddenly rewrote its packaging, that is why.

Is there a certification you can just trust?

Not yet, not really. GreenScreen Certified is the most substantive scheme — it requires combustion ion chromatography testing at a single named laboratory, with thresholds that vary by product standard, and it launched a standard covering reusable food service ware and cookware in September 2023. We could not confirm that any non-stick cookware product currently holds it.

Testing standards are thin in this category generally. PPG — a coatings manufacturer, so hardly a hostile witness — says that “consumer cookware lacks standardized and widely adopted testing methods”, leaving makers to develop proprietary protocols. PPG is talking about performance and durability rather than chemistry, but it tells you how little in this market is measured to a common standard.

What to actually look for

1. Ignore “PFOA-free”. The eight big producers say they phased it out by 2015. Almost everyone can say it.
2. Read the sentence under the headline. If “PFAS-free” is substantiated by “no intentionally added PFAS”, you have found the real claim.
3. Look for a number and a laboratory. A defensible PFAS-free claim needs total organic fluorine testing at a stated detection limit, with the lab named. Almost nobody publishes this.
4. Prefer no claim over a big one. A bare stainless pan does not need a PFAS story, which is why the best-scoring products in our table tend to be the ones making the smallest promises.