Allergen Friendly Catering: Clear Menus to Buffet

The short answer: allergen friendly catering means that allergen information for every dish is collected early, checked against the actual recipe, and shown clearly wherever guests serve themselves. It is not one special menu. It is a chain of steps that runs from the guest list to the kitchen to the buffet card, and a gap at any link can undo the rest. This guide walks through each step, including what nut free catering should mean and what allergen labeling at buffets should say.

Key Takeaways

• Allergen friendly catering is a process, not a menu. Information has to stay consistent from RSVP to recipe to buffet card.
• The U.S. FDA lists nine major food allergens: milk, eggs, fish, Crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. A nut free menu covers only two of the nine.
• Sesame has been a major allergen under FDA rules since 1 January 2023, so it belongs on every checklist.
• Allergies can first appear in adulthood, so ask every guest, including people who have never mentioned an allergy before.
• Agree in writing what nut free means for your event before the menu is finalised.
• Buffet cards should name the allergens in each dish in plain words, using the same terms as the menu key.
• This article does not state any legal requirement for catered events. Check local rules separately.

What allergen friendly catering actually means

People use allergen friendly catering and allergy friendly catering to mean the same thing: a catered event where guests with food allergies can eat with accurate information and a reasonable degree of care taken over what reaches their plate.

It does not mean a kitchen can promise that no allergen will ever be present. A responsible caterer plans to reduce risk and to communicate clearly, and does not make absolute promises. That distinction matters for you as the host, because it shapes the questions you ask and the answers you should expect.

In practice, allergen friendly catering has four parts:

1. Gathering information from guests before the event.
2. Translating that information into menu decisions, such as which dishes are made without a particular allergen.
3. Controlling what goes into each dish and how it is prepared and transported.
4. Communicating at the point of service, so a guest standing at a buffet can tell what each dish contains.

Dietary needs that are not allergies, such as halal, vegetarian and vegan requirements, fit into the same system. They are not medical in the same way, but they depend on the same discipline: accurate recipes, clear labels and consistent naming. Caterman accommodates halal, vegetarian, vegan and common allergy needs, and the planning approach below applies to all of them.

The nine major allergens you should plan around

The most useful reference point is the list of major food allergens published by the U.S. Food and Drug Administration. The FDA names nine:

• Milk
• Eggs
• Fish
• Crustacean shellfish
• Tree nuts
• Peanuts
• Wheat
• Soybeans
• Sesame

Congress passed the Food Allergen Labeling and Consumer Protection Act in 2004. The FASTER Act, signed into law on 23 April 2021, made sesame the ninth major food allergen recognised in the United States. According to the FDA, all of its requirements for major food allergens, including labeling and manufacturing, have applied to sesame since 1 January 2023.

Two points follow for event planning.

First, build your allergen key around all nine, including sesame. Sesame is the newest addition and the one most likely to be missed on an older checklist or template.

Second, be clear about scope. The FDA page describes rules for packaged-food labeling and manufacturing. It does not say those rules govern the signs a caterer puts on a buffet. The list is a sound, widely recognised framework for a menu key, and that is how this article uses it. It is not a statement about what the law requires of caterers at an event.

The nine are also a minimum. A guest may report a reaction to a food that is not on the list. Record it anyway and pass it to the kitchen in the same way.

Why guests will ask: how common food allergy is

Hosts sometimes assume allergies are rare enough to handle case by case on the day. The national figures suggest otherwise, though it helps to be careful about which figure you use, because different studies measure different things. All of the numbers below are national U.S. figures. This article found no Bay Area-specific data.

FARE (Food Allergy Research & Education) reports that food allergy affects more than 33 million people in the U.S., which it describes as roughly 1 in 13 children and 1 in 10 adults. Its facts and statistics page, citing the CDC and National Center for Health Statistics 2021 National Health Interview Survey, gives 5.8% of children aged 0 to 17 as diagnosed with a food allergy. In a separate FARE fact sheet, the organisation says about 40% of children with food allergies have more than one.

That last figure is a good reason to design menus that handle several allergens at once, rather than treating each request in isolation.

Allergies can begin in adulthood

FARE also reports that among the more than 27 million U.S. adults with food allergy, nearly half developed at least one food allergy as adults. In its release on the national indicator report, 21% of adults say all of their food allergies began after age 18.

For a corporate lunch or a wedding, this has a practical consequence. Your guest list may include people who have never flagged an allergy before, either because they did not have one until recently or because they have not yet thought to mention it. A single question at the start of the process is more reliable than relying on guests to speak up.

Allergy, intolerance and self-reported allergy

A survey of 40,443 U.S. adults, published as Prevalence and Severity of Food Allergies Among US Adults in JAMA Network Open, estimated that 10.8% of adults were food allergic at the time of the survey. Nearly 19% believed they were food allergic.

The gap between those two numbers is useful for hosts. When a guest says they have an allergy, they may be describing a true allergy or a food intolerance, and the kitchen needs to know which. The simplest approach is to ask which food is involved and what reaction the guest experiences, then treat the answer seriously either way.

Be aware that estimates vary widely depending on method. The Food Allergy Research and Resource Program at the University of Nebraska, in its summary of food allergy prevalence, gives 3.5 to 4.0% of the overall population for IgE-mediated allergies, a much lower figure than the survey-based estimates above. These numbers are not interchangeable, because they measure different things. What they agree on is that a guest list of any size is likely to include someone who needs allergen information.

Step one: collect information early and ask the right questions

Allergen friendly catering starts well before the menu is fixed. The most effective tool is a short question on your RSVP form or registration page. Because allergies can appear in adulthood, ask everyone rather than only those who volunteer.

A useful form asks for:

• Which food or foods the guest needs to avoid.
• Whether it is an allergy, an intolerance or a dietary choice.
• What reaction the guest experiences, in their own words.
• Any other dietary needs, such as halal, vegetarian or vegan.

You do not need to collect medical detail beyond what the kitchen needs to act on. The aim is to give the caterer enough information to make decisions, not to build a health record.

Set a response deadline well ahead of the event date, and name one person on your side who will pass the information to the caterer. For corporate events, this is often an office manager or event coordinator. For weddings, it may be the couple or a planner. Having a single point of contact avoids the situation where three different lists arrive in three different formats.

If late changes arrive, such as a guest who mentions an allergy the day before, make sure there is a clear route for getting that to the kitchen team. A caterer can only act on what it has been told.

Step two: define nut free before you promise it

Nut free catering is one of the most common requests, and it is a good example of why definitions matter. The word nut is used loosely in everyday speech. The FDA list treats peanuts and tree nuts as two separate major allergens. A guest who is allergic to one may or may not need to avoid the other, and a menu described as nut free could be read in several ways.

Before you confirm a nut free menu, agree in writing what the term covers for your event. The questions to settle include:

• Does nut free mean no peanuts, no tree nuts, or both?
• Is the whole menu nut free, or only certain dishes or a separate meal for specific guests?
• Does it include nut-derived ingredients, such as oils or pastes, as well as whole nuts?
• What applies to items brought in from outside, such as a cake from your own baker?

The answers are a matter of agreement between you and your caterer. They are not something a general source can settle for you, because the right scope depends on your guests and on how the kitchen works. What matters is that the definition is explicit, that it is recorded, and that the same wording appears on the menu key and the buffet cards.

Remember also that a nut free menu does not address the other seven allergens. Guests with a sesame, milk or shellfish allergy need the same level of clarity. If your event includes a nut free requirement and several others, the allergen key should cover all of them together.

Step three: keep ingredients traceable in the kitchen

Accurate buffet labels depend on accurate recipes, and accurate recipes depend on knowing what goes into each dish.

At Caterman, more than 80% of what we serve is prepared from scratch in our San Jose kitchen. That matters for allergen planning because food made from scratch has a known recipe. When we make a sauce, a dressing or a side ourselves, we know what is in it, and we can adjust it when a guest has a requirement.

The remainder is bought in, and that part needs a different kind of attention. Packaged ingredients carry their own labels, and those labels should be read rather than assumed. A product that suited one event may be reformulated by the next, so checking each time is sensible practice.

Whatever caterer you choose, these are fair questions to ask about traceability:

• How does the kitchen record the allergens in each recipe?
• How are bought-in ingredients checked for allergen information?
• How does a guest request reach the person preparing that dish?
• What happens if a recipe changes between the tasting and the event?

The answers tell you whether allergen information is part of how the kitchen works or an afterthought. Specific kitchen procedures, such as how surfaces and utensils are handled, are best confirmed directly with the caterer for your event, so that you are relying on what they tell you for your menu rather than on general descriptions.

Step four: allergen labeling at buffets

The buffet is where the chain is most exposed. A kitchen may have handled everything carefully, but a guest at a self-service table sees only what is in front of them. Allergen labeling at buffets is what connects the kitchen's knowledge to the guest's decision.

A clear buffet card includes:

• The dish name, as it appears on the printed menu.
• A short plain-language description, so guests can recognise what the dish is.
• The major allergens it contains, named in words rather than symbols alone.
• Dietary tags, such as vegan, vegetarian or halal, kept visually separate from the allergen line.
• A prompt to ask, so guests know a member of the team can answer questions.

Use the same terms everywhere

The menu key, the printed menu and the buffet cards should all use identical wording. If the menu says tree nuts and a card says almonds, a guest has to translate, and a guest with a less common allergy may not do so reliably. Use the nine major allergen names as your standard terms and add specific ingredients where they help.

Sesame deserves a specific line on the card. Because it became a major allergen only in 2023, it can be present in dressings, breads and garnishes without guests expecting it.

Say what is and is not in the dish

Two kinds of statement are useful, and they are different. One lists what a dish contains. The other says what a dish is made without. A guest with a nut allergy benefits from both: a card that says the dish contains milk and wheat, and a menu key that explains how the nut free dishes are identified. Avoid vague wording such as allergy safe, which suggests a guarantee no one can responsibly give.

Placement and readability

Put each card directly in front of its dish, at a height where it can be read without leaning over the food. Print it at a size that is legible at arm's length. Where several dishes are similar, such as three salads, make sure the cards are not interchangeable at a glance.

For events with dozens of dishes, a printed allergen matrix at the start of the line can complement the individual cards. Guests can check the matrix first, then confirm at the dish.

Brief the people who serve

Cards cannot answer every question. Servers and event staff should know where the full allergen information is held and who to ask if a guest raises something unusual. If you are hosting, it also helps to tell your own team who the catering lead is, so a guest's question reaches the right person quickly.

Plated meals, stations and buffets compared

The format of your event changes where allergen information has to appear.

Buffets put the most responsibility on written labels, because guests choose for themselves.

Stations add a person to each point of service, which gives guests someone to ask, but labels are still needed so guests do not have to rely on a conversation alone.

Plated meals move the decision earlier. Guests choose in advance or are matched to a meal based on the information they gave. Here, the quality of your RSVP data matters most, and a guest who needs a specific meal should be identified clearly to the serving team, in whatever way you and the caterer agree.

Whichever format you choose, the underlying requirement is the same: accurate recipe information, consistent naming and a clear route from guest request to plate.

Cake and bar: the parts you may supply yourself

Two elements of an event often come from outside the caterer, and both need to be included in your allergen planning.

Caterman does not bake or supply the cake. We provide cake service, which means cutting and plating the cake from your own baker. That means the allergen information for the cake comes from your baker. Ask for a full ingredient list, share it with your caterer, and agree how the cake will be labelled when it is served, especially if you have agreed a nut free definition for the event.

Similarly, Caterman provides bartenders and a full bar setup but does not sell or supply alcohol. You supply it, and we serve it. If any drinks or mixers you provide have allergen implications for your guests, pass that information along so the bar team can answer questions accurately.

The principle is simple: anything that arrives from outside the kitchen should come with its ingredient information, and that information should reach the people serving it.

Planning that supports fewer surprises and less waste

Early allergen information helps the kitchen plan quantities as well as recipes. When the team knows how many guests need a particular dish, it can prepare for that number instead of overproducing as a precaution. Caterman plans thoughtfully to reduce food waste, and accurate RSVP data is one of the most useful inputs to that planning.

It also helps to confirm numbers close to the event. If your guest list changes, tell your caterer, including any change to the dietary requirements attached to it.

A checklist to use with your caterer

1. Collect allergy and dietary information from every guest on the RSVP, asking which food and what reaction.
2. Name one contact on your side to pass information to the caterer.
3. Use the nine major allergens, including sesame, as the standard list for your menu key.
4. Agree in writing what nut free means for your event.
5. Ask how allergens are recorded for each recipe and how bought-in ingredients are checked.
6. Confirm what each buffet card will show and that wording matches the menu.
7. Get ingredient information for anything supplied from outside, such as a cake.
8. Confirm how guests and staff can ask questions on the day.
9. Share final numbers and any late dietary changes as early as possible.

What this article does not cover

This guide is about planning and communication. It does not state what California or Santa Clara County law requires of caterers, including any rules on allergen training, cross-contact or written labels at buffets, because those points could not be verified from official sources for this article. If you need to know the legal position for your event, check with the relevant local health authority or ask your caterer how they meet local requirements.

It also cannot give individual medical advice. Guests with serious allergies should always make their own decisions about what to eat, with the information the event provides and with their own doctor's guidance.

Frequently asked questions

What is allergen friendly catering?

It is catering where allergen information is gathered early, matched to real recipes and shown clearly at the point of service. It reduces risk through planning and communication. It does not promise that any allergen is entirely absent.

Does a nut free menu cover all allergens?

No. The FDA lists nine major allergens, and peanuts and tree nuts are two of them. A nut free menu says nothing about milk, eggs, fish, shellfish, wheat, soybeans or sesame unless those are addressed separately.

What should a buffet allergen label include?

The dish name, a short description, the major allergens it contains in plain words, any dietary tags and a prompt to ask staff. Use the same wording as the printed menu.

How early should I ask guests about allergies?

On the RSVP, with a deadline well before the event. Allergies can first appear in adulthood, so ask every guest, not only those who have mentioned one before.