Walk through the cookware aisle -- or scroll through any air fryer listing on Amazon -- and you will see "PFAS-Free" printed on boxes from dozens of brands. It sounds authoritative. It implies a standard has been met. It feels like a certification. It is none of those things.
At the federal level in the United States, there is no legal definition for "PFAS-Free." The FDA has not defined it. The EPA has not defined it. No federal agency requires testing before a brand can make the claim. A manufacturer can print "PFAS-Free" on a product without measuring a single compound, without disclosing what coatings or materials were used, and without any third-party review. That is the starting point every parent needs to understand before evaluating any PFAS-free claim in a kitchen product.
This does not mean all PFAS-free claims are false. Many brands that make the claim have genuinely transitioned away from fluoropolymer coatings. Some have commissioned third-party testing to confirm it. But the label alone -- without supporting evidence -- tells you almost nothing. And the marketing ecosystem around PFAS in cookware has been deliberately designed to be confusing, with claims like "PFOA-Free," "PTFE-Free," and "Non-Toxic" deployed in ways that exploit the gap between what consumers hear and what they actually mean.
The Three-Label Confusion: PFAS-Free, PFOA-Free, PTFE-Free
These three terms appear interchangeably on product pages and in brand marketing. They are not interchangeable. Understanding the hierarchy is the foundational skill for evaluating any nonstick cookware or air fryer purchase.
PFOA-Free is the lowest bar of the three -- and it has been the lowest bar since 2015. PFOA (perfluorooctanoic acid) is a specific PFAS compound that was used as a processing aid in manufacturing PTFE (Teflon) coatings. Its toxicity profile, including its classification as a Group 1 carcinogen by the WHO's IARC in December 2023, led to a voluntary US manufacturer phase-out completed by 2015. This means that nearly every piece of nonstick cookware sold in the United States since 2015 qualifies as "PFOA-Free" whether or not the brand says so. The claim has become a marketing artifact: technically accurate and substantively almost meaningless. The product may still contain PTFE, GenX (PFOA's replacement processing chemical, with its own emerging toxicity concerns), and any number of other PFAS compounds. See our full entry on PFOA for the complete risk picture.
PTFE-Free is a meaningfully higher bar. PTFE (polytetrafluoroethylene) is the fluoropolymer that makes up Teflon and most generic nonstick coatings. Under the EPA and OECD structural definitions, PTFE qualifies as a PFAS. A product that is genuinely PTFE-free -- using ceramic, stainless steel, or cast iron instead -- has removed the primary source of fluoropolymer exposure from nonstick cooking. However, "PTFE-free" alone does not guarantee freedom from all PFAS: manufacturing aids, solvents, or other processing chemicals used to apply a non-PTFE coating could theoretically contain PFAS if not independently verified.
PFAS-Free is the broadest and theoretically most protective claim. It asserts that the product contains no intentionally added member of the 10,000+ compound PFAS family -- not just PFOA, not just PTFE, but the entire class. This is the claim that matters. The problem, as established above, is that it has no federal legal definition and no required verification method. A brand can make it because it sounds good, not because it has been confirmed.
The practical takeaway: a product labeled only "PFOA-Free" should trigger skepticism. A product labeled "PTFE-Free" deserves more attention but still warrants scrutiny about how the alternative coating was processed. A product labeled "PFAS-Free" with third-party testing or certification is the highest-confidence option available to consumers today.
How the Greenwashing Has Played Out
The PFAS-Free claim has already produced major consumer protection litigation. In February 2025, HexClad agreed to a $2.5 million settlement resolving a class action that alleged the brand falsely marketed cookware as "Non-Toxic, PFAS-Free" while the products contained PTFE -- a compound that qualifies as a PFAS under the EPA and OECD structural definition. HexClad acknowledged coating its products with PTFE while simultaneously claiming they were PFAS-free, a position the lawsuit characterized as materially misleading. As a condition of the settlement, HexClad agreed to stop advertising products as "non-toxic," "PFOA-free," or "PFAS-free" if they contain PTFE or any other PFAS.
A separate lawsuit against Made In Cookware made similar allegations, arguing it was misleading to market cookware as "100% non-toxic" when the PTFE manufacturing process itself involves PFAS compounds.
These cases are not isolated incidents. They reflect a structural problem in the cookware marketing environment: brands discovered that PFAS anxiety among consumers was commercially exploitable, and some made claims that went well beyond what their products could actually support. The litigation is beginning to create accountability, but it is reactive -- it addresses false claims after consumers have already paid for products and believed they were making safer choices.
NSF 537: The First Credible Third-Party Verification
On March 25, 2025, NSF International announced the release of NSF Certification Guideline 537: PFAS-Free Products for Nonfood Compounds and Food Equipment Materials. This is the most significant development in PFAS-free claim verification to date, and it represents the first standardized third-party certification framework with a defined analytical methodology for confirming PFAS absence.
NSF 537 defines "PFAS-free" as any product that:
- Does not contain intentionally added PFAS
- Does not incorporate post-consumer recycled material or intentionally used PFAS additives
- Has total organic fluorine (TOF) levels below 50 parts per million (ppm)
The 50 ppm TOF threshold matters because total organic fluorine analysis is the most sensitive available screening method for detecting PFAS as a class -- including the 10,000+ compounds that cannot all be individually tested. Organic fluorine is the chemical fingerprint of PFAS, so a TOF limit operationalizes the PFAS-free definition at the analytical level rather than relying solely on ingredient disclosure.
The certification process includes formulation review (confirming no intentionally added PFAS in ingredients), laboratory testing to the TOF threshold, and listing in NSF's verified databases. Certified food equipment materials appear in NSF's Certified Food Equipment listing; certified nonfood compounds are listed in the NSF White Book.
NSF 537 was designed primarily for commercial food equipment and food-industry chemical suppliers -- it is not a consumer product seal in the same direct sense as, say, MADESAFE. But it is the framework most likely to become the industry standard as state laws continue to push brands toward substantiated PFAS-free claims, and it gives procurement-minded families a specific question to ask: has this product been tested to NSF 537 or an equivalent analytical standard?
What State Laws Are Doing That Federal Law Has Not
In the absence of federal PFAS-free claim standards, several states have moved to fill the regulatory gap -- both by banning PFAS in products outright and by restricting misleading chemical-free claims.
California AB 1200, effective January 2024, prohibits cookware manufacturers from claiming a product is free of a specific chemical if that chemical belongs to a chemical group identified on California's designated hazardous chemical list -- unless the chemical was genuinely not intentionally added. In practice, this means a brand cannot say "PFOA-Free" while using other PFAS. The law effectively requires PFAS-free claims to be class-wide, not compound-specific, or they cannot be made at all. It also requires manufacturers to disclose all intentionally added chemicals on product labels and websites.
Minnesota, as of January 1, 2025, became the first state to ban the sale of nonstick cookware with intentionally added PFAS coatings entirely, under Amara's Law (Minn. Stat. 116.943). The Minnesota Pollution Control Agency confirmed that air fryers are included in the cookware definition when they have a food contact surface with a nonstick PFAS coating. Beginning July 2026, companies selling products in Minnesota must disclose the presence of intentionally added PFAS. Minnesota's approach bypasses the claim verification problem entirely: if the product cannot be sold with PFAS, the PFAS-free claim becomes the only available marketing language -- and it had better be accurate.
Other states -- including Maine, Connecticut, New York, Washington, and Colorado -- have enacted or are advancing PFAS product restrictions with phased compliance timelines extending to 2032.
Which Brands Have Credible PFAS-Free Claims
Not all PFAS-free claims are created equal. The spectrum ranges from marketing language with no backing to verified third-party testing with published results.
Most credible (third-party testing with published data):
- Caraway explicitly states its cookware is made without PFAS including PTFE and PFOA, and backs this with third-party lab testing for over 200 harmful substances, with results publicly accessible on the brand's website. Caraway also discloses compliance with California AB 1200.
- Our Place (Always Pan, Wonder Oven) states its ceramic coating is PFAS-free and PTFE-free, with third-party testing supporting the claim. The Wonder Oven specifically markets itself as an air fryer with a PFAS-free cooking surface.
- GreenPan Thermolon is a ceramic sol-gel coating that is chemically PFAS-free by structure (silica-based, no fluoropolymer component). Consumer Reports tested GreenPan ceramic pans and found no detectable PFAS among the 96 compounds tested. However, GreenPan stopped publicly publishing test data after 2020 and settled a 2019 class action over marketing practices -- their claim remains credible on chemistry grounds but less transparent than Caraway.
Lower confidence (claim without substantiated public testing):
- Many brands market products as "PFOA-Free" and conflate it with "PFAS-Free" -- a red flag.
- Products described as "diamond," "granite," "titanium," or "stone" nonstick without specifying PTFE-free status almost always use PTFE as the base polymer.
- Brands that labeled products "PFAS-Free" while containing PTFE, as in the HexClad case, illustrate the risk of relying on label claims alone.
For air fryers specifically, the safest choices are stainless steel basket models (such as certain Breville configurations) or verified ceramic-coated models. The enclosed, fan-circulated environment of an air fryer makes PFAS-free verification particularly important: any coating degradation gets distributed throughout the cooking cavity more efficiently than in an open pan.
Why "Non-Toxic" Does Not Mean PFAS-Free
"Non-toxic" is the broadest and least regulated claim in the cookware space. It has no definition in US federal law, no required testing, and no enforcement mechanism. It is a pure marketing term. A product can simultaneously be labeled non-toxic and contain PTFE, and several brands have done exactly that, as the HexClad and Made In litigation illustrates.
The FTC's Green Guides, which govern environmental marketing claims, do provide general guidance that unsubstantiated environmental claims can constitute deceptive advertising -- but the FTC has not issued specific rules on PFAS-free or non-toxic claims for cookware. California's AB 1200 provides the strongest current state-level check on misleading non-toxic claims in the context of chemical class misrepresentation.
From a practical evaluation standpoint: treat "non-toxic" as a prompt to look deeper, not as a safety guarantee. Ask what the coating material is, whether independent testing has been done, what standard the testing used, and whether results are published.
A Framework for Evaluating PFAS-Free Claims
Given the regulatory vacuum, here is a practical decision framework for families evaluating cookware, frying pans, air fryers, or any kitchen product making a PFAS-free claim:
Step 1: Identify the coating material. The brand should be able to tell you specifically what the nonstick surface is made from -- ceramic sol-gel, stainless steel, cast iron, carbon steel, or a named polymer. If a brand will not disclose the coating chemistry, the PFAS-free claim has no foundation.
Step 2: Confirm PTFE-free status. PTFE-free and PFAS-free should appear together. PTFE is the most common PFAS in cookware and the one most likely to be present. A brand that claims PFAS-free without mentioning PTFE may be using PTFE and not considering it a PFAS -- which is inconsistent with EPA and OECD definitions.
Step 3: Look for third-party testing. Caraway publishes third-party results. NSF 537 is the emerging standard for food equipment materials. MADESAFE certifies consumer products with an explicit PFAS screen. Ask whether the brand has engaged any third-party lab and whether results are accessible.
Step 4: Check for California AB 1200 disclosure compliance. Brands selling into California after January 2024 must disclose intentionally added chemicals on their websites. If a brand is compliant, their chemical disclosure page should be findable. The absence of disclosure is a warning sign.
Step 5: Default to material choices that are PFAS-free by chemistry. Stainless steel, cast iron, carbon steel, and enameled cast iron contain no fluoropolymers by design. For the situations where nonstick is genuinely needed, a third-party-tested ceramic coating from a brand that discloses its chemistry and testing is the next-best option.
This is not about achieving perfection. It is about making the evaluation with clear eyes, knowing that the label on the box is a marketing decision -- not a regulatory finding.