Allergen declaration
An allergen declaration from a supplier is a written statement, issued by that supplier, naming which allergens are present in the material they send you and which allergens are handled elsewhere on their site. QA teams collect it for every raw material, packaging contact material and processing aid on the approved supplier list, and keep the current version on file for audit.
What an allergen declaration is
An allergen declaration is a document from a supplier that states which allergens are intentionally present in a specific material they supply, and which allergens are present elsewhere in their factory and therefore carry a cross contact risk. It is issued on the supplier's own paper, attributed to a named person or a technical mailbox, and it is tied to a material and a manufacturing site rather than to the supplier as a company.
It is not the same thing as a specification, a label artwork proof, or a test result. A specification describes what the material should be. A test result says what one batch was. The allergen declaration is the supplier's positive statement of what their site handles, which is the only way you can assess cross contact risk you cannot see or sample for.
An example
A flavour house supplies a seasoning blend. Its declaration names mustard as an intentional ingredient, states that sesame is handled on the same site with a cleaning step between runs, and confirms no peanut is present on site. Your specification, your label copy and your allergen risk assessment all rest on that one page. If the declaration was signed two years ago and the supplier has since taken on a new contract, the paper on your file is answering last year's question.
What QA teams usually ask a declaration to contain
Wording varies by standard, by customer and by supplier template, so check what your own scheme and your own customers ask for. In practice the fields that make a declaration usable in front of an auditor are:
- The supplier name and the specific manufacturing site, not just the head office.
- The material name and code, matched to what appears on your goods in records.
- Allergens present as intentional ingredients, listed explicitly.
- Allergens handled elsewhere on the site, with a note on segregation or cleaning between products.
- A clear statement where an allergen is absent from the site altogether.
- A date of issue and a named signatory or role.
One quiet problem: unlike an audit certificate, an allergen declaration often carries no expiry date at all. Most plants therefore assign their own review date, commonly a year from issue, and chase a fresh declaration on that cycle or whenever the supplier changes a recipe, a line or a site. That review date is what turns the document from a filing decision into a due date somebody owns.
Related terms
- CoA, certificate of analysis: a per batch statement of test results against specification. Batch specific, where an allergen declaration is site and material specific.
- Audit certificate: the third party certificate showing a supplier holds a scheme certification, with a real expiry date printed on it.
- Approved supplier list: the register of suppliers you have assessed and accepted, and the place the required document set per supplier is defined.
- Supplier questionnaire: the broader self assessment a supplier completes at approval, which usually asks about allergen handling but does not replace a signed declaration per material.
- Document control: the discipline of knowing which version is current, who issued it and when it is due for review.
- Non-conformance: the finding raised when the document on file is missing, unsigned or out of date at the point an auditor asks for it.
Questions
Does an allergen declaration expire?
Usually it carries no printed expiry, unlike an audit certificate. Most plants set their own review period, often a year from issue, and also request a new declaration whenever the supplier changes a recipe, a production line or a site.
Is an allergen declaration the same as a certificate of analysis?
No. A certificate of analysis reports test results for a specific batch. An allergen declaration is the supplier's statement about a material and the site that makes it, covering both intentional ingredients and allergens handled elsewhere in the factory.
Who at the supplier should sign it?
Someone who can speak for the site's technical position, typically a technical or quality manager, with their name or role and a date on the document. An undated, unattributed declaration is hard to defend when an auditor asks how current it is.
Do I need one declaration per supplier or per material?
Per material and per manufacturing site is the safer basis, because a supplier with several sites or several products can have different allergen profiles across them. A single company wide letter tends not to answer the question an auditor is actually asking.
What happens if the declaration on file is out of date at an audit?
It is normally treated as a document control problem rather than a product problem, and it is raised as a finding you then have to close out with evidence. The cost is your time and the corrective action, which is why the review date matters more than the filing.
What other documents sit alongside it?
Audit certificates, certificates of analysis, supplier questionnaires and specifications are the usual set. Our guide to what documents to collect from every food supplier works through them one by one.