The Listeria Rule Change Every RTE Manufacturer Must Understand Before July 2026

What Is Changing

From 1 July 2026, EU Regulation 2024/2895 amends Criterion 1.2b of Regulation 2073/2005 — the microbiological criteria regulation that governs Listeria monocytogenes in ready-to-eat foods. The amendment applies in the EU and in Northern Ireland under the Windsor Framework.

The change is specific but significant. Currently, the strict criterion of not detected in 25g applies only before the food has left the immediate control of the producing manufacturer. From 1 July 2026, that criterion applies to products placed on the market throughout their entire shelf life — not just at the factory gate.

What the Criteria Actually Mean

Criterion 1.2a remains: if a manufacturer can demonstrate to the Competent Authority that L. monocytogenes will not exceed 100 cfu/g throughout shelf life — through historical data, physicochemical data, shelf-life studies, or predictive modelling — then 1.2a applies and products can be placed on the market on that basis.

Criterion 1.2b kicks in when a manufacturer cannot demonstrate that. From July 2026, in that situation, not-detected-in-25g must be maintained throughout shelf life — not just at production.

Criterion 1.3 still applies to foods that cannot support Listeria growth — including products with pH ≤4.4, water activity ≤0.92, or shelf life of less than 5 days.

Who Is Affected

Any UK manufacturer producing RTE foods that support L. monocytogenes growth and supplying the EU or Northern Ireland. The highest-risk categories: cold-smoked fish, cooked meats and pâté, soft and semi-soft cheeses, RTE salads and prepared fresh produce, chilled sandwiches, and dairy desserts.

If you supply only the GB domestic market, you are not currently legally bound — the FSA has not confirmed adoption into GB law. But the science is sound, and treating this as a reason to do nothing is a risk management decision that should be documented explicitly in your HACCP plan.

The HACCP Plan Implications

L. monocytogenes is an environmental organism. It grows at 2°C, survives freezing, and colonises floor drains, wall-floor junctions, cracked tiles, and any surface where moisture and organic matter accumulate. Detection at end of line is a lagging indicator. An effective environmental monitoring programme is the leading one.

For manufacturers who need to demonstrate compliance with 1.2a — which is the route most will want to take — the requirement is historical data from correctly functioning HACCP. That means documented hazard analysis, functioning CCPs, and verified PRPs. Not a spreadsheet. A governed system.

The Industry Guidance You Need to Read

The Chilled Food Association published the Second Edition of its Assuring Safety of Ready to Eat Food in Relation to L. monocytogenes and Regulation 2073/2005 guidance in January 2026. It is the authoritative industry reference on this topic — developed by the Industry Listeria Group with representatives from Tesco, M&S, Sainsbury's, Waitrose, Morrisons, Co-Op, ASDA, Greencore, Pilgrim's Europe, and the BRC, with input from the FSA and Food Standards Scotland. The BRC has formally endorsed it.

It covers the decision framework for determining which criterion applies to your product, how to establish shelf life, environmental monitoring programme requirements, worked examples for smoked salmon, brie, cooked ham, and pre-cut lettuce, and a full Q&A section on what to do when Listeria is detected at various levels.

Read the full CFA guidance document →