Why Allergen Awareness Matters at Events

Event catering is hospitality at its most concentrated. You might serve three courses to two hundred guests in a marquee, circulate canapés at a drinks reception, or keep a hot buffet running for a corporate conference. In every one of those settings, someone in the room is likely to be managing a food allergy — and they are trusting you with far more than a meal.

Allergies are not preferences. A trace of the wrong ingredient can cause a reaction within minutes, and the pressure of a live event makes errors more likely, not less. The good news is that most incidents are preventable with three simple habits: well-trained staff, accurate ingredient records, and a proper conversation with the guest before the first plate leaves the kitchen.

The Fourteen Regulated Allergens

UK food law recognises fourteen allergens that must be declared whenever they are used as ingredients in food served or sold. Your team should be able to name them and, more importantly, spot them on an ingredient label:

• Celery — including celery salt, often found in stocks and Bloody Mary mixes
• Cereals containing gluten — wheat, rye, barley, oats, spelt and kamut
• Crustaceans — prawns, crab, lobster, langoustine
• Eggs — in mayonnaise, mousse, meringue, glazes and some pastas
• Fish — including fish sauce, Worcestershire sauce and anchovies in dressings
• Lupin — lupin flour and seeds, sometimes used in gluten-free baking
• Milk — butter, cream, cheese, ghee, whey and milk powders
• Molluscs — mussels, oysters, squid, snails
• Mustard — seeds, powder and paste, common in dressings and marinades
• Peanuts — including groundnut oil and satay sauces
• Sesame — tahini, sesame oil, seeded breads and dips such as hummus
• Soybeans — tofu, edamame, soy sauce and many vegetarian products
• Sulphur dioxide and sulphites — above 10 mg/kg or 10 mg/litre, found in dried fruit, wine and some preserved vegetables
• Tree nuts — almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios and macadamia nuts

It is worth noting where these hide. Mustard appears in salad dressings, sulphites in wine and dried apricots, milk powder in crisps, and sesame in a great many breads and dips. Sauces, stuffings and desserts are the usual culprits.

Train Every Role, Not Just the Kitchen

Allergen training should reach waiting staff, bar staff, event managers and anyone plating or clearing. A chef can prepare a dish perfectly, only for a runner to deliver it to the wrong seat or a waiter to guess at an answer.

Build allergen awareness into your pre-service briefing. Run through the menu, flag the dishes containing each allergen, and confirm which guest has which requirement. Give staff a simple rule: if you do not know, say so and find out — never guess, and never say "it should be fine". Encourage them to write down allergy details at the point of order rather than relying on memory halfway through service.

Practical measures in the kitchen matter just as much. Use colour-coded chopping boards, keep a dedicated fryer for gluten-free items, prepare allergen-free dishes first where possible, and store ingredients in clearly labelled containers. Handwashing and clean utensils between tasks prevent the cross-contamination that causes many avoidable reactions.

Keep Ingredient Records Current

Your allergen information is only as good as your paperwork. Collect and date supplier specification sheets for every product you buy, and keep them somewhere the team can reach quickly — a labelled folder in the office and a digital copy both work well.

Recipes change, and so do products. A supplier may switch a thickening agent, a stock powder may gain a new ingredient, or you may swap brands during a busy week. Whenever something changes, update your allergen matrix and tell the team at the next briefing. If you cannot obtain reliable information about an ingredient, do not use it for a guest with an allergy — offer an alternative instead.

Remember that "may contain" statements are advisory, not a free pass. Treat them honestly and let the guest decide, with your clear explanation, whether they are comfortable.

Talking to Guests Before Service Begins

The calmest way to handle allergies is to deal with them early. Where possible, ask about dietary requirements at the booking or RSVP stage, and pass that information to the kitchen well before the event. For weddings, a discreet note on the seating plan works beautifully; for corporate events, a line on the booking form does the job.

On the day, a short conversation beats a long menu. Ask what the guest needs to avoid, explain exactly what you can offer, and agree a plan. Confirm whether they would like their dish plated separately and served by a named member of staff. For buffets and canapé receptions, where shared utensils and unidentified trays create real risk, a pre-agreed plated alternative is often the kindest option.

Finally, keep the information with the food. Label buffet dishes clearly, and make sure whoever carries a plate to a table knows whose it is. If a guest has a reaction despite your care, follow your emergency procedure, call for medical help, and keep the dish and its details aside for reference.

Get these habits right and allergen management stops feeling like a burden. It becomes what good hospitality has always been: knowing your guests, being honest about your food, and looking after people properly.