A Key Cause of Allergen Recalls

Incorrect or missing allergen information on food packaging is a serious issue. It puts people with food allergies at risk and can lead to costly product recalls. This guide helps food businesses—especially small manufacturers—spot and fix problems before they happen.

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Why This Matters

If allergens aren’t clearly listed on packaging, people with food allergies can become seriously ill. Businesses may also face expensive recalls, damage to their reputation, and legal consequences.

Common Reasons for Allergen Recalls

Most allergen-related food recalls happen because of simple but serious mistakes. These include allergens not being listed at all, listed incorrectly, or not clearly highlighted on the label. Sometimes, products end up in the wrong packaging, or claims like “free from nuts” are made when the product actually contains traces of allergens. Another common issue is failing to warn consumers about the risk of cross-contact—when a product might unintentionally contain allergens due to shared equipment or facilities. All of these errors can put people with serious allergies in danger and lead to expensive recalls, lost customer trust, and reputational damage for the business.

Most food recalls in the UK are caused by:
  • right_arrow_orange_icon Allergens not being listed or listed incorrectly
  • right_arrow_orange_icon Products in the wrong packaging
  • right_arrow_orange_icon Incorrect “free-from” allergen claims
  • right_arrow_orange_icon Missing warnings about possible cross-contact (e.g. “may contain soya”)

How to Manage Allergen Risks

A strong allergen risk management system should cover every stage of production. If something goes wrong, it’s important to investigate properly and take steps to prevent it happening again.

Fishbone (Ishikawa) Diagram

Looks at factors like people, equipment, methods, and materials to find the cause of a problem.

Five Whys

Asks “why?” repeatedly until the real cause is discovered. Can be combined with the fishbone method.

When Allergens Aren’t Listed Properly

What Can Go Wrong?

Allergens can be left off the label entirely or written in the wrong language, which puts allergic consumers at serious risk. Problems can also arise from poorly designed artwork or incorrect labels. Information may not match across different platforms, such as packaging and websites, especially when updates aren’t managed carefully.

How to Prevent This
  • right_arrow_orange_icon Approve and regularly review ingredient specifications with suppliers
  • right_arrow_orange_icon Check that packaging matches the product’s allergen profile
  • right_arrow_orange_icon Keep ingredient data in one central system
  • right_arrow_orange_icon Ensure all staff understand allergen rules and labelling requirements
  • right_arrow_orange_icon Use technology (e.g. barcode scanners) to track ingredients
  • right_arrow_orange_icon Regularly review labels and allergen declarations

Mismatched Product and Packaging (Mispacking)

What Can Go Wrong?

A product might be packed into the wrong packaging, or a label from an older version may be applied by mistake. This can happen easily if packaging materials aren’t clearly separated or if old labels are still in circulation. Such mix-ups can cause consumers to unknowingly eat allergens not listed on the label.

How to Prevent This
  • right_arrow_orange_icon Keep packaging and raw materials well organised and separated
  • right_arrow_orange_icon Double-check packaging matches the product
  • right_arrow_orange_icon Clear production lines between product runs
  • right_arrow_orange_icon Use barcode or scanner systems to reduce mistakes
  • right_arrow_orange_icon Regularly audit your processes and train your staff
  • right_arrow_orange_icon Dispose of old packaging properly so it can’t be reused

Incorrect “Free-From” Allergen Claims

What Can Go Wrong?

A “free-from” claim on a product can be dangerous if the product actually contains the allergen—either as an ingredient or through unintentional cross-contact. These mistakes mislead allergic consumers into thinking a food is safe when it isn’t.

How to Prevent This
  • right_arrow_orange_icon Thoroughly check all ingredient specifications
  • right_arrow_orange_icon Test products regularly to confirm “free-from” claims
  • right_arrow_orange_icon Train staff on accurate allergen labelling
  • right_arrow_orange_icon Make sure artwork and labels go through strict approval checks
  • right_arrow_orange_icon Audit your suppliers and verify their allergen controls

Not Declaring Possible Cross-Contact (“May Contain”)

What Can Go Wrong?

Sometimes, a product can accidentally be contaminated with allergens during production, but there’s no warning on the label. This is often due to shared equipment, poor cleaning, or cross-contact during storage and handling.

How to Prevent This
  • right_arrow_orange_icon Ask suppliers to confirm cross-contact risks
  • right_arrow_orange_icon Store allergen ingredients separately
  • right_arrow_orange_icon Plan production schedules to reduce risk of cross-contact
  • right_arrow_orange_icon Clean equipment properly and verify it’s allergen-free
  • right_arrow_orange_icon Use colour-coded tools or containers to keep allergens separate
  • right_arrow_orange_icon Work with accredited labs for allergen testing
  • right_arrow_orange_icon Train all staff regularly on allergen handling

Building a Culture of Allergen Safety

Food allergen safety is essential—not optional. Even small mistakes can put lives at risk. By building strong systems, working closely with suppliers, and keeping your teams informed, your business can help keep customers safe and avoid costly recalls.

Further Reading

FDF Guidance on Preventing Allergen Recalls for the Food Industry