Forever Chemicals in Cereal: The TFA Contamination Study That Shook Europe

On December 4, 2025, the advocacy group Pesticide Action Network Europe (PAN Europe) published a report on trifluoroacetic acid (TFA), a persistent “forever chemical,” in cereal-based foods bought across Europe. It detected TFA in 54 of 66 products, and the single most contaminated product was a breakfast cereal bought in Ireland. The findings drew wide coverage and renewed calls to ban the pesticides that break down into TFA.

The report raises real questions, but it also has limits worth understanding. This article sets out what PAN Europe found, how to read the numbers, what regulators and industry have said since, and what it does and does not mean for cereal eaters, including in the United States.

Key Takeaways

PAN Europe detected TFA in 81.8% of 66 conventional cereal-based products from 16 European countries, at an average of 78.9 µg/kg, a median of 39.5 µg/kg and a maximum of 360 µg/kg.
The highest level, 360 µg/kg, was in an Irish breakfast cereal, and PAN found wheat products significantly more contaminated than other cereal-based products.
There is no specific EU legal limit for TFA in food. PAN’s comparisons rely on a default pesticide residue limit and on a safety value that PAN itself proposed.
In June 2026, a European Chemicals Agency committee recommended classifying TFA as toxic to reproduction (Category 1B). The European Commission has yet to decide.
The study tested European products only. This article found no comparable survey of TFA in U.S. cereals.

What the Study Found

PAN Europe and partner groups bought 66 conventional cereal products in 16 European countries, including breakfast cereals, sweets, pasta, croissants, bread and flour. According to the group’s press release and report:

Detection: TFA was found in 54 of the 66 samples (81.8%).
Levels: The average was 78.9 µg/kg, the median 39.5 µg/kg and the highest 360 µg/kg.
Products: “The most contaminated food is a typical breakfast cereal,” PAN Europe said. The Irish Times reported that the Irish breakfast cereal sample, at 360 µg/kg, was followed by Belgian wholemeal bread (310), German wheat flour (310) and a French baguette (210).
Wheat: Wheat products were significantly more contaminated than other cereal-based products. PAN says studies suggest wheat may be particularly efficient at taking up TFA from soil and water.
Water comparison: The average level in food was 107 times the average TFA concentration PAN found in an earlier survey of 36 tap water samples from 11 EU countries (740 ng/L).

PAN Europe describes this as the first EU-wide study of TFA in cereal products, noting that food authorities do not routinely monitor TFA in food.

How to Read the Numbers

Several of the report’s headline claims depend on PAN Europe’s own benchmarks, so context matters.

No legal limit exists. There is no specific EU maximum residue level (MRL) for TFA. PAN argues that the default MRL of 0.01 mg/kg (10 µg/kg), which applies to pesticide active substances classified as reprotoxic, should be used, and on that basis says all 54 positive samples exceeded it. That is PAN’s precautionary interpretation, not a regulatory finding of illegal residues.

The safety value is PAN’s proposal. PAN calculated that the average TFA intake from a single product is 36.9% of its own proposed acceptable daily intake, rising to 184.3% when it accounted for children’s total daily cereal consumption. Some news coverage described this as exceeding “safety limits”; strictly, it exceeds a limit PAN proposed. The European Food Safety Authority (EFSA) has been asked to revise its 2014 TFA risk assessment, and PAN’s June 2025 report notes that risk assessments in the Netherlands and Belgium have estimated a much lower tolerable daily intake than earlier evaluations.

Comparing food with water. The “107 times” figure compares micrograms per kilogram of food with nanograms per liter of water. It shows that food can be a larger source of TFA than drinking water, but it is not a direct measure of risk.

Sample size. Sixty-six products from 16 countries is a snapshot, not a monitoring program, and the report comes from an advocacy organization that campaigns for a ban on PFAS pesticides.

What Is TFA and Where Does It Come From?

TFA is a very stable breakdown product of many fluorinated chemicals, including some PFAS pesticides and fluorinated gases (F-gases) used in refrigeration, according to PAN Europe. Because it is highly water-soluble and resists breaking down, it accumulates in soil and water, where plants can absorb it.

On toxicity, PAN cites animal studies linking TFA to skeletal and eye malformations in rabbit offspring and to reduced sperm quality, thyroid, immune and liver effects in rats. On June 5, 2026, the European Chemicals Agency’s Committee for Risk Assessment adopted an opinion recommending that TFA be classified as toxic to reproduction (Category 1B) and as persistent, mobile and toxic, according to the Food Packaging Forum. The opinion is based on animal studies and is not legally binding; the European Commission must decide whether to amend EU classification rules, a process that Chemistry World reported could take nine to 15 months.

The Earlier Austrian Study

PAN Europe’s December report followed a June 2025 study of 48 cereal products bought in Austria, half from organic and half from conventional farming. All 48 contained TFA, at levels from 13 µg/kg in organic rye to 420 µg/kg in conventional butter biscuits. Organic products had a median of 47 µg/kg, compared with 165 µg/kg for conventional products, about 3.5 times higher. The report also compared its results with a 2016–2017 study commissioned by the European Commission and described a threefold increase in less than a decade.

What Industry and Regulators Say

The pesticide industry disputes the level of concern. CropLife Europe told The Irish Times that “all available risk assessments indicate there is no toxicological concern from TFA found in the environment under realistic conditions of exposure,” and called for “a harmonised, science-based evaluation” using a risk-based approach “rather than relying solely on hazard classification.”

PAN Europe, which The Irish Times noted receives European Union funding, is calling on regulators to set a far more protective TFA safety limit, to ban PFAS pesticides and other sources of TFA, and to monitor TFA in food. It specifically urged EFSA to set a protective safety value.

What About U.S. Cereals?

The PAN Europe study tested only products bought in Europe, so its numbers cannot be applied to cereals sold in the United States. TFA forms wherever its precursor chemicals are used or released, but pesticide use, water sources and supply chains differ between countries, and this article found no comparable survey of TFA in U.S. cereals. Until such data exist, there is no basis for saying U.S. products are either similar or different.

What You Can Reasonably Do

None of the reports or agencies discussed here advises people to stop eating cereal or grains. If you want to limit exposure while the science and regulation develop:

Organic products tested lower, but not free of TFA. In the Austrian study, organic products had a median about 3.5 times lower than conventional ones, but every sample contained some TFA. Our guide to whether organic cereal is worth it covers what the organic label does and does not guarantee.
Vary your grains. PAN found wheat products significantly more contaminated than other cereal products, so rotating oat-, corn- and rice-based foods with wheat-based ones spreads out any single source.
Watch for regulatory updates. The European Commission’s decision on classification and EFSA’s revised risk assessment will shape whether limits are set.

For other questions about cereal ingredients, our report on artificial dyes leaving the cereal aisle and our cereal FAQ may help.

The Bigger Picture

TFA in cereal is part of a wider debate about PFAS in the environment and food. PAN Europe has also reported TFA in European tap water and wine. The December 2025 findings suggest that food may be a larger route of TFA exposure than water, but the health significance of current levels is still being assessed by regulators. An informed response is to follow the regulatory process and the science, rather than to treat a single NGO survey as either proof of harm or proof of safety.

Sources

PAN Europe: High levels of ‘forever chemical’ TFA in everyday cereal products all across Europe (press release, December 2025) — accessed November 1, 2026
PAN Europe: Unseen and Unregulated: TFA, the ‘forever chemical’ in Europe’s Cereals (report, December 2025) — accessed November 1, 2026
The Irish Times: Study of ‘forever chemical’ in European foods finds highest level in Irish cereals (December 4, 2025) — accessed November 1, 2026
NutritionInsight: “Unseen and unregulated” forever chemical in most EU cereals raises reprotoxic concerns — accessed November 1, 2026
PAN Europe: The Forever Chemical in Our Daily Bread (report, June 2025) — accessed November 1, 2026
Food Packaging Forum: ECHA committee recommends stricter hazard classification of forever chemical TFA — accessed November 1, 2026
Chemistry World: Breakdown product of pesticides and refrigerants may be classed as reproductive toxicant by EU — accessed November 1, 2026