Allergen Matrix

An allergen matrix is a reference chart that lists menu items or recipes alongside the allergens present in their ingredients. It helps restaurant staff answer ingredient questions, identify potential allergen exposure and communicate accurately with guests. A reliable matrix is based on current supplier information and the actual preparation method used in the kitchen.

What an allergen matrix contains

A typical matrix lists menu items down one side and the allergens recognized by the applicable food regulations across the top. Each dish is marked for allergens intentionally present in its ingredients. A separate section or note should identify cross-contact risks and limitations where these cannot be reliably controlled.

How to build and maintain the matrix

1. List every current menu item and its complete recipe, including sauces, garnishes, stocks, marinades and compound ingredients.
2. Review supplier labels and specifications for every purchased product.
3. Map each ingredient to the allergens it contains, following the local regulatory definitions and naming requirements.
4. Assess shared equipment, fryers, utensils, storage and preparation areas for cross-contact risks.
5. Have a responsible manager or chef verify the information before it is used by service staff.
6. Update the matrix whenever ingredients, suppliers, recipes or preparation methods change.

Allergen matrix versus allergen control plan

The matrix is the ingredient and menu reference. The allergen control plan describes how the operation verifies the information, prevents cross-contact, trains staff and handles allergy orders. A matrix alone does not make a kitchen safe for guests with allergies.

How staff should use it

Servers can use the matrix as a first reference, but they should confirm allergy requests with the chef or designated manager. Staff must not guess, remove a visible ingredient and assume the dish is safe, or promise that a menu item is allergen-free without verification.

Chef’s tip: keep one controlled version of the matrix and make sure every station and service manager is working from the same current information. Date each revision and identify who approved it.