How to Handle Allergens and Dietary Labels on Menus

Handle allergens by building a dish-by-ingredient matrix that flags the major allergens in every item, marking clear dietary symbols on the menu, and training staff to answer allergy questions accurately and escalate to the kitchen. Good allergen labeling isn't just risk management — it's sales. Guests with dietary needs choose where the whole table eats, and a menu they can trust wins that decision.

The allergens to track

In the U.S., federal law recognizes nine major food allergens, and your labeling should cover all of them. Many regions add more, so check your local rules, but start here:

Sesame became the ninth federally recognized allergen in the U.S. in 2023, so if your matrix is older, add it. Beyond allergens, guests also look for dietary categories: vegetarian, vegan, gluten-free, and dairy-free.

Build an allergen matrix

The foundation is a grid: every menu item down the side, every allergen across the top, a mark in each cell where that allergen is present. Build it from your actual recipes and prep — including sauces, marinades, oils, and garnishes, which is where hidden allergens live. The worksheet above is this matrix, ready to fill in.

Building it forces a useful discipline: you have to know exactly what goes into every dish, which ties directly to your recipe costing. Keep the matrix updated every time a recipe or supplier changes — a swapped fryer oil or a new bun can introduce an allergen overnight.

Label the menu clearly

On the printed or digital menu, use simple, consistent symbols and a legend:

• (V) vegetarian, (VG) vegan, (GF) gluten-free, (DF) dairy-free.
• Keep symbols small and tasteful so they inform without cluttering the menu layout.
• Add a footer line: "Please tell your server about any allergies. Prepared in a kitchen that handles all major allergens."

That footer matters. Unless you run a dedicated allergen-free kitchen, you can't promise zero cross-contact — so label what you know and tell guests to talk to staff for anything critical.

Train staff to answer safely

Labels get people in the door; staff keep them safe. Every server should know the golden rule: never guess. If a guest declares an allergy, the process is fixed — check the matrix, confirm with the kitchen, and describe what you actually know. Build this into your onboarding and revisit it at pre-shift meetings whenever the menu changes.

A tableside allergy also needs to reach the line clearly. That's a communication and ticketing job — the allergy note has to travel from server to kitchen without getting lost.

Takeaway: Build an allergen matrix from your real recipes, label the menu with clear dietary symbols and a legend, and train every server to check-and-confirm rather than guess. It protects guests and wins the whole table's business.

Keep allergy notes flowing to the kitchen

The safest systems put the allergy note right on the ticket. Cobblestone POS lets servers attach modifiers and allergy flags to any item so the note prints straight to the kitchen — free, with no monthly fee versus roughly $470+/mo for a comparable Toast setup. You can also store dietary tags on each menu item so the information is consistent every time. When labeling is built into the system, safety stops depending on memory.

Review your matrix and labels every quarter and after any menu change. A trusted allergen program is both the right thing to do and a quiet, durable source of repeat business.