Critical ingredient management: allergens

The monitoring of allergens is one of the most demanding requirements in food ingredient supply chain management.

It is not enough to know if an ingredient contains allergens: it is necessary to know where the raw materials come from, how they were produced, on which lines, with which shared equipment, and with what supporting documentation.

For those purchasing industrial ingredients, the supplier’s allergen management directly impacts their own ability to comply with labeling regulations, respond to distribution audits, and protect the final consumer.

This article covers the regulatory framework, operational practices, and documentation to be requested. The system certifications that enable this management are covered in the article on food certifications.

The 14 mandatory food allergens: the regulatory framework

EU Regulation 1169/2011 on the provision of food information to consumers defines the list of food allergens whose presence must be declared on the label, both as an intentional ingredient and as a possible contaminant from cross-contamination.

The 14 food allergens provided for in Annex II of the Regulation are: cereals containing gluten, crustaceans, eggs, fish, peanuts, soy, milk, nuts (almonds, hazelnuts, walnuts, cashews, pecan nuts, Brazil nuts, pistachios, macadamia or Queensland nuts), celery, mustard, sesame seeds, sulphur dioxide and sulphites, lupin, and molluscs.

Any change to this list requires a formal regulatory update. In the meantime, the responsibility for correct declaration lies with the food business operator who places the finished product on the market.

The declaration obligation applies both to the intentional presence of the allergen as an ingredient and to the accidental presence resulting from cross-contamination during production.

Allergen management along the supply chain: what it means in practice

Effective allergen management begins long before the finished product: it starts with the qualification of the ingredient supplier and the way they manage their production processes.

For each ingredient, reliable allergen monitoring requires two levels of information.

Origin of the raw material. Is the ingredient produced in a facility that also processes allergens? Which raw materials share the same lines? What is the supplier’s policy on the segregation of incoming allergenic raw materials?

Production process. Is the equipment used for the production of the ingredient dedicated or shared? If shared, what is the validated cleaning procedure between batches? Is there documentation of cleaning checks?

Segregation and prevention of cross-contamination

Allergen management in production is based on two complementary approaches: physical segregation and validated cleaning plans.

Physical segregation. Allergenic raw materials are stored in separate areas, with clear visual identification and controlled access procedures. Production lines that process allergenic ingredients are separated from those that do not, or managed with planned production sequences.

Cleaning plans. When complete physical segregation is not possible, production on shared lines requires validated cleaning plans, with analytical tests confirming the absence of allergenic residues before the production of the next batch.

Validation is not a one-off operation: it must be repeated periodically and documented so that it is verifiable during audits.

It is this element that distinguishes structured allergen management from informal management: not good intentions, but verifiable documentation.

Allergen declaration: what the supplier’s documentation must contain

The allergen declaration is the document with which the supplier communicates information regarding the allergen management of each SKU to their customer. To be operationally useful, it must contain precise and updated information.

Intentional presence. List of allergens present as an ingredient or as a component of a compound ingredient, with reference to Annex II of EU Reg. 1169/2011.

Risk of cross-contamination. Explicit indication of allergens not present as an intentional ingredient but processed in the same facility or on the same lines, with an assessment of the residual risk after cleaning.

Updates. The declaration must be updated every time a raw material, a supplier, a process, or the facility configuration changes. An obsolete declaration is potentially more dangerous than an absence of declaration, because it creates a false sense of security.

Allergen labeling in the finished product: responsibilities

The responsibility for allergen labeling in the finished product lies with the operator who places it on the market, not the ingredient supplier.

This means that the final manufacturer must collect allergen declarations from all their suppliers, update them with every change in recipe or supply, and translate them into a correct allergen declaration on the finished product.

Allergen labeling includes two distinct components, with different regulatory implications.

Intentional presence. Allergens present as an ingredient must be highlighted in the ingredients list with a clear visual reference, typically through a different typeface (bold, italics, or underlined). It is not sufficient to indicate them only in the specific allergen section.

Accidental presence. Indications such as “may contain” or “produced in a facility that uses” are optional but, if present, must correspond to a documented real risk assessment, not be used as a generic cover.

Failure to update allergen labeling when a recipe or supplier changes is one of the most frequent causes of product recalls in the EU.

Allergen tracking at Bayo: integrated system and documentation

Bayo manages allergen tracking within the FSSC 22000 v6 certified integrated management system, which explicitly includes allergen management as a component of the food safety plan.

The Concorezzo facility operates with segregation of allergenic raw materials, documented cleaning plans, and validated control procedures.

For each ingredient, Bayo provides the SKU-specific allergen declaration, indicating intentional presence and the risk of cross-contamination, updated with every change in raw materials or process.

The documentation is part of the standard technical package for each SKU, along with the technical data sheet and declaration of conformity. Details of the certification system are available on the certifications page.

For specific allergen management needs or for supplier qualification audits, the Bayo technical and quality team is available for facility visits and for the provision of supplementary documentation. Support can be requested through technical consultancy or directly via assicurazionequalita@bayo.it.

What to request from the ingredient supplier for allergen management

Effective allergen management requires a structured approach starting from the supplier qualification phase.

Allergen declaration per SKU, with the date of issue and a commitment to update at every relevant change. Do not accept declarations without a date or without an indication of the scope of validity.

Information on the production facility, specifically which other allergens are processed, with what frequency, and with what segregation system. FSSC 22000 certification alone does not replace this specific information.

Change notification procedure. Does the supplier commit to promptly communicating every change in raw material, process, or facility that could impact the allergen profile? This commitment should be formalized in the contract or supply specifications.

Audit availability. A supplier that correctly manages allergens has no difficulty opening the facility for an audit. Audit availability is one of the most reliable indicators of system robustness.

To learn more about the certification system that enables this management, please refer to the article on food ingredient certifications.

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