EU Regulation (EC) No 1935/2004 is the framework that governs what your food is allowed to touch.1 It covers plates, cups, packaging film, silicone spatulas, and pans. It lists 17 categories of food contact material in Annex I. It promises, in Article 5, that the European Commission will adopt "specific measures" for each category — testing protocols, migration limits, disclosure requirements.
Twenty-two years later, specific measures exist for five categories: plastics, recycled plastics, active and intelligent materials, ceramics (lead and cadmium limits only), and regenerated cellulose.1 The other twelve — including metals, coatings, silicones, rubber, wood, cork, and textiles — have only the general safety requirement in Article 3: materials "shall not transfer their constituents to food in quantities which could endanger human health."1
That general requirement does not specify what to test. It does not specify at what temperature. It does not specify which substances to measure. It does not require manufacturers to disclose what is in the coating, what migrates from it, or how migration was assessed. It requires safety. It does not define how safety is demonstrated.
Coatings — the layer between your food and the pan — have no specific EU measures. No migration limits. No standardised test protocol. No mandatory disclosure.
The gap is not new. It has been there since 2004.
What Article 5 Promised
I pulled up Regulation 1935/2004 on EUR-Lex and read Article 5 in full.1 The language is clear. It authorises the Commission to adopt specific measures for "groups of materials and articles" listed in Annex I. Annex I lists seventeen groups. The first four words of Group 1 are "Active and intelligent materials." Group 4 is "Ceramics." Group 5 is "Cork." Group 9 is "Metals and alloys." Group 12 is "Paper and board." And so on through seventeen categories.
The regulation does not say specific measures are optional. It says the Commission "may" adopt them — which, in EU legislative drafting, signals intent that is contingent on evidence and political will, not an invitation to do nothing for two decades. The Commission has exercised that authority for plastics (Regulation (EU) No 10/2011, a 96-page document specifying migration limits for over 800 substances, test conditions up to 225 degrees Celsius, and a positive list of authorised monomers).2 For coatings applied to cookware, it has not.
The result is a two-tier system inside a single regulation. If your food touches plastic, there is a list of what can be in that plastic, how much of each substance can migrate, and under what conditions migration must be tested. If your food touches a coating — the sol-gel layer on a "ceramic" nonstick pan, the PTFE layer on a traditional nonstick pan — there is a sentence: do not endanger human health.
If you have bought a nonstick pan in the last five years — turned the box over, read the label, checked for safety claims — you were looking at a product whose coating has no regulatory obligation to tell you what it contains, what migrates from it, or how that was tested. The "PFAS-free" or "ceramic" or "non-toxic" on the label is a marketing claim. It is not a regulatory classification. No EU framework defines any of those terms for cookware coatings. What you treated as reassurance had no mechanism behind it.
The E171 Irony
In May 2021, the European Food Safety Authority published its safety assessment of titanium dioxide (E171), the white pigment used as a food additive in sweets, sauces, and supplements. EFSA's conclusion: "a concern for genotoxicity... could not be ruled out." The concern was specifically about nanoparticles — titanium dioxide at particle sizes small enough to cross cellular membranes that larger particles cannot.3
The EU acted. Commission Regulation (EU) 2022/63 removed titanium dioxide from the list of authorised food additives, effective August 2022.4 E171 can no longer be added to food in the European Union.
The same year the ban took effect, researchers at the US National Institute of Standards and Technology had already published data showing that "ceramic" nonstick cookware releases titanium dioxide nanoparticles into food under simulated consumer use — 100 million particles per square decimetre under the most aggressive scratching conditions, at a median diameter of 250 nanometres.5 An independent study by Golja and colleagues at the Jozef Stefan Institute measured titanium migration of up to 861 micrograms per litre from "ceramic" coatings into acetic acid food simulant.6
The particle sizes overlap. The entry route is the same: oral ingestion. EFSA's genotoxicity concern was about nanoparticles of precisely this substance at precisely this scale.
The regulatory treatment is different. E171 was banned because it is "intentionally added" to food — a classification under food additive law. Titanium dioxide that migrates from a pan coating is classified as a food contact material constituent — governed by Regulation 1935/2004, which has no specific measures for coatings and therefore no migration limit, no testing standard, and no disclosure requirement for titanium dioxide at any particle size.
The same substance. Comparable particle sizes. Banned when put in food on purpose. Unregulated when released into food from a pan.
This is not a conspiracy. It is the consequence of two regulatory regimes that do not talk to each other. Food additive law asks: "Is this substance safe to add to food?" Food contact material law asks: "Does this material endanger health?" — and, for coatings, provides no mechanism to answer its own question.
The Strongest Defence of the Gap
The most credible counter-argument is structural, and it deserves to be heard in full.
Regulation 1935/2004's Article 3 establishes a general safety requirement that covers all seventeen material categories — including coatings. Specific measures are adopted under Article 5 where evidence of harm warrants them. The plastics regulation (10/2011) exists because decades of research quantified specific migration risks from specific plastic monomers. Coatings do not have specific measures because the Commission has not determined that evidence of coating-specific harm warrants them. The absence of specific measures is a risk-management decision, not an oversight. The general safety requirement still applies. Manufacturers are still legally obligated not to transfer constituents at levels that endanger health.
This argument is coherent. It explains the regulatory architecture as working as designed.
Where it breaks down is in the asymmetry it creates. The plastics regulation gives consumers something concrete: a positive list, migration limits, test protocols. A manufacturer of plastic food packaging can demonstrate compliance. A consumer can, in principle, verify it. The general safety requirement for coatings gives manufacturers an obligation — but no standardised way to demonstrate they have met it, and consumers no way to verify. The obligation exists. The mechanism to make it operational does not.
The TiO2 example sharpens this. EFSA assessed titanium dioxide and found a genotoxicity concern it could not rule out. That assessment drove a ban on E171. No equivalent assessment has been conducted for titanium dioxide migrating from cookware coatings at the particle sizes NIST measured. The general safety requirement says coatings must not endanger health. Whether titanium dioxide nanoparticles at 250 nm migrating from cookware coatings endanger health has not been formally evaluated — because there is no specific measure that would trigger such an evaluation.
The safety requirement exists. The process to give it teeth does not.
The Council of Europe Steps In — Without Binding Authority
In 2024, the Council of Europe's European Directorate for the Quality of Medicines published the second edition of its Technical Guide on metals and alloys in food contact.7 The guide sets specific release limits — including raising the chromium limit from 0.25 to 1.0 mg/kg while specifying it applies to trivalent chromium only, and setting a nickel limit.
This guide is a serious document. It was drafted by toxicologists and materials scientists. It addresses real gaps.
It is also non-binding. EU member states may adopt it, adapt it, or ignore it entirely. It has no enforcement mechanism at the EU level. It is guidance from an international body, not legislation from the Commission. For coatings specifically — as distinct from the metal substrates the guide primarily addresses — it does not establish migration limits.
The Council of Europe produced what the Commission did not. It did so without the authority to make it mandatory.
Who Maintains the Gap
The regulatory gap for cookware coatings in the EU is structural — it was built into Regulation 1935/2004 when the Commission chose not to adopt specific measures for thirteen of seventeen material categories. But in the United States, a parallel story shows how the gap is actively maintained.
The Cookware Sustainability Alliance was formed in 2024.8 Its co-founders are Meyer Corporation, the largest cookware distributor in the United States with estimated revenue of $1.4 billion, and Groupe SEB, the world's largest cookware manufacturer with 2024 revenue of 8.27 billion euros.8 Between them, they own or manufacture for dozens of brands — Tefal, All-Clad, Circulon, Anolon, Farberware, and others. CSA's membership includes additional manufacturers: Tramontina, and brand licensees across the nonstick category.
CSA's stated purpose is sustainability. Its documented activity is lobbying against state-level PFAS bans that would affect PTFE cookware.
The spending is in campaign finance records: at least $218,000 in California, $25,000 in Connecticut, $15,000 in Vermont.8 CSA has been active in thirteen states where PFAS restrictions were being considered. In California, SB 682 — which would have restricted PFAS in cookware — was vetoed by Governor Newsom in October 2025; CSA had been active in opposing the bill.9 In New Mexico and Illinois, fluoropolymer exemptions were inserted into PFAS legislation. In Vermont, implementation was delayed to 2028.8
CSA president Steve Burns stated publicly: "No PTFE bans in cookware have been passed in any states since CSA came on the scene in 2024."8
This is not a secret. Burns said it on the record. The spending is disclosed. The legislative outcomes are public. What is not publicly synthesised is the sequence: the two companies that dominate global cookware manufacturing formed a trade association, funded lobbying activity documented in campaign finance records, and achieved PTFE exemptions in the states where they were active.
The EU regulatory gap exists because specific measures were never adopted. The US regulatory gap exists — in the states where CSA has been active — because specific restrictions were actively prevented. Different mechanisms, same outcome: the consumer is not told what migrates from the coating on their pan.
What "Ceramic" Coatings Actually Are
This matters for the regulatory question because what cannot be named cannot be regulated.
A traditional ceramic is clay fired above 1,000 degrees Celsius. It is chemically inert. It has been in human kitchens for eight thousand years.
The coating on a "ceramic" nonstick pan is a sol-gel — a synthetic composite of silicone polymer (PDMS), silica nanoparticles, organosilane binders, and in some formulations, titanium dioxide for opacity.10 The American Ceramic Society classifies these coatings as "quasi-ceramic" and notes they may contain "organic polymers with varying toxicity."11 In at least one commercial formulation described in patent US7879449B2, the food-contact layer contains fluoroalkylsilane at 0.3 to 12 per cent by weight — a fluorinated compound.12 A consumer who bought "ceramic" to escape fluorinated chemistry may have purchased it back under a name that evokes fired clay.
This investigation continues below.
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No regulation — EU or US — requires the manufacturer to disclose what is in the sol-gel. No regulation requires migration testing specific to sol-gel coatings. No regulation defines what "ceramic" means on a cookware label.
The material falls into a classification gap. It is not ceramic as defined by Directive 84/500/EEC (which covers lead and cadmium in traditional pottery). It is not plastic as defined by Regulation 10/2011 (which covers organic polymer food contact materials). It is not metal. It sits between categories — and in Regulation 1935/2004's framework, between categories means between protections.
What Disclosure Would Look Like
The gap is not abstract. It has a shape.
Under the plastics regulation (10/2011), a manufacturer of plastic food packaging must: use only substances from an authorised positive list, test migration under specified conditions up to 225 degrees Celsius, verify that total migration does not exceed 10 mg per square decimetre, verify that specific migration of individual substances does not exceed their individual limits, and maintain records of compliance available to enforcement authorities.2
Under the general safety requirement for coatings, a manufacturer must: not transfer constituents to food in quantities which could endanger human health. No positive list. No migration limit. No test protocol. No records mandate specific to coatings.
If coatings had specific measures comparable to plastics, a manufacturer would need to disclose what the coating contains, test what migrates at temperatures consumers actually cook at, demonstrate compliance against specific limits for substances of concern — including titanium dioxide nanoparticles — and make that data available.
None of this is required. The consequence: a consumer buying a "ceramic" nonstick pan has no regulatory mechanism to learn what is in the coating, what migrates from it, or whether migration has been tested at the temperatures they cook at. The label says "ceramic." The regulation says "safe." Neither tells them what is in the food-contact layer of the product that touches their dinner.
What Would Change This Analysis
Three developments would materially alter the conclusions of this report.
First: if the European Commission adopts specific measures for coatings under Regulation 1935/2004 Article 5. A plastics-equivalent regulation for coatings — with a positive list, migration limits for substances including TiO2 nanoparticles, and test conditions at cooking temperatures — would close the disclosure gap this report identifies. The Commission has the legal authority. It has not exercised it.
Second: if EFSA conducts a formal safety assessment of titanium dioxide nanoparticles migrating from cookware coatings at the particle sizes and concentrations NIST measured. If that assessment concludes that migration at these levels presents no concern, the TiO2 regulatory irony narrows to a structural curiosity rather than a substantive gap. If the assessment finds concern, the case for specific measures strengthens.
Third: if industry voluntarily discloses coating composition, migration test results, and testing conditions as standard practice. Voluntary disclosure would not close the regulatory gap — it would bypass it. If a manufacturer published what is in its coating and what migrates under independently verified conditions, a consumer could evaluate the product regardless of what the regulation requires.
None of these has happened.
Methodology
This report examined EU Regulation (EC) No 1935/2004, Commission Regulation (EU) No 10/2011, Commission Regulation (EU) 2022/63, and the Council of Europe Technical Guide on metals and alloys in food contact (2nd edition, 2024). Evidence on titanium dioxide nanoparticle migration from cookware was drawn from Ntim et al. (2018, NIST) and Golja et al. (2017, Jozef Stefan Institute). Evidence on the Cookware Sustainability Alliance was drawn from published trade press reports and public lobbying disclosure records. Patent US7879449B2 was reviewed for coating composition. EFSA's 2021 safety assessment of E171 was read in full.
This report did not investigate individual manufacturer compliance with the general safety requirement — that assessment is outside our scope and capability. We did not contact EFSA, the European Commission, or the Cookware Sustainability Alliance for comment. We did not access any paywalled studies beyond those available through public abstracts.
The Levers
The regulatory gap is structural. Closing it requires legislative action you and I cannot take this Saturday. But the gap has a practical surface — a place where it touches your kitchen — and that surface is where you can act.
Start with the label. Look at the cookware you own. Find the words on the box, the tag, or the manufacturer's website. "Ceramic nonstick," "PTFE-free," "non-toxic" — note them. None of these terms has a regulatory definition for cookware coatings in the EU. They describe a marketing position, not a tested standard.
Ask three questions. Contact the manufacturer — email, web form, customer service chat. Ask: (1) What coating system is applied to this product? Not the brand name. The chemistry — is it sol-gel, PTFE, or something else? (2) What migration testing has been performed, at what temperature, and using what food simulant? (3) Under which regulatory framework was the product tested — EU 10/2011 (plastics), the CoE Technical Guide, or the general safety requirement of 1935/2004 only?
If the manufacturer answers all three with specifics — coating chemistry, test protocol, regulatory framework — you have a product whose maker can demonstrate what the regulation does not require them to demonstrate. That is worth knowing.
If the manufacturer does not answer, or answers with marketing language ("our products meet all applicable safety standards"), that is also worth knowing. The silence is the disclosure gap, made personal. The regulation does not require them to tell you. They have chosen not to tell you anyway.
Alternatives. Single-material cookware — carbon steel (99% iron, 1% carbon), cast iron, or enamelled cast iron — eliminates the coating question entirely. No coating means no coating-composition question, no nanoparticle-release question, and no classification gap. Carbon steel costs $40 to $80, lasts a lifetime, and is recyclable through standard scrap metal streams. It requires hand-washing and occasional re-seasoning — roughly sixty seconds per use. Cast iron offers similar material simplicity at greater weight. Both are manufactured by companies outside the CSA membership structure, including Lodge (USA, founded 1896), de Buyer (France, founded 1830), and Matfer Bourgeat (France). Enamelled cast iron (Le Creuset, Staub) eliminates the seasoning requirement but introduces an enamel layer — which, unlike sol-gel coatings, falls under the ceramics category of 1935/2004 and has specific lead and cadmium limits.
No option is without trade-offs. Carbon steel cannot tolerate prolonged acidic cooking. Cast iron is heavy. Enamelled cast iron chips. But every one of these products is a single material or a well-characterised coating with decades of use data — not a proprietary sol-gel composite whose contents are undisclosed because no regulation requires disclosure.