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📝 Allergen registration & EU legislation · ⏱️ 2 min read

How do I respond if a guest indicates they've had an allergic reaction?

📝 KitchenNmbrs · updated 15 Mar 2026

Many restaurant owners think allergic reactions are rare and won't happen to them – but one in four restaurants deals with this emergency annually. How you respond makes the difference between managing a crisis and facing a catastrophe. Your reaction speed and protocol knowledge can literally save lives.

First aid comes first

Speed determines everything with allergic reactions. Those first few minutes? They're make-or-break, especially when anaphylaxis strikes. Your team can't learn this stuff on the fly.

⚠️ Important:

With severe symptoms like difficulty breathing, swelling of the throat or face, or loss of consciousness: call 112 immediately. Don't wait.

Recognize the symptoms

Reactions don't follow a script – they range from annoying to deadly. Train your staff to spot these warning signs:

  • Mild reactions: itching, rash, stomach complaints, nausea
  • Moderate reactions: swelling of lips/eyes, cramps, vomiting
  • Severe reactions: difficulty breathing, throat swelling, loss of consciousness, rapid heartbeat

💡 Example:

Guest says: "I'm itching and don't feel well after eating."

Correct response:

  • Ask immediately: "Do you have any known allergies?"
  • Stop serving that dish
  • Offer water, no milk (can worsen the reaction)
  • Stay calm and with the guest

What you MUST NOT do

These mistakes turn bad situations into disasters:

  • Don't downplay it: "It's not that bad" or "It's probably nothing"
  • Don't give milk: This can worsen reactions for certain allergies
  • Don't argue: "But there weren't any nuts in it" – the guest's body doesn't lie
  • Don't abandon them: Stay with the guest or assign someone who will

Legal aspects

You're legally bound to provide accurate allergen information. After managing kitchen operations for nearly a decade, I've seen how documentation saves businesses from lawsuits. After any incident:

💡 Example documentation:

Always keep:

  • Recipes with allergen lists for each dish served
  • Delivery receipts for ingredients (for traceability)
  • Cleaning logs (to prevent cross-contamination)
  • Training records for your team

Prevention is better than cure

Prevention beats damage control every time. Make sure your team memorizes which allergens lurk in each dish. Digital systems help you track all 14 EU-required allergens per dish and retrieve them instantly during service.

⚠️ Important:

Train your team regularly. An allergic reaction can develop within minutes of eating an allergen. Speed is essential.

After the incident

The crisis might be over, but your work isn't:

  • Evaluate what went wrong: Why did this happen?
  • Check your procedures: Was the allergen information correct?
  • Train your team: What can we do better?
  • Update your systems: Does anything need to be adjusted?

Action plan for allergic reaction (directly applicable)

1

Assess the severity of the situation

Check immediately: can the guest still speak and breathe normally? If in doubt about breathing, throat/face swelling, or loss of consciousness: call 112.

2

Gather information and stop further exposure

Ask which allergies are known and what the guest has eaten. Stop serving that dish immediately. Offer water, no milk or other drinks.

3

Stay with the guest and document everything

Don't leave the guest alone. If symptoms worsen: call 112 immediately. Note what happened, which dish, time, and symptoms. This is important for medical help and legal handling.

✨ Pro tip

Drill your staff on allergic reaction protocols every 3 months using real scenarios. Staff who've practiced the steps can respond 40% faster during actual emergencies.

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Frequently asked questions

Can I give medication to a guest having an allergic reaction?

No, never give medication. However, you can help if the guest has their own medication (like an EpiPen) and asks for help administering it.

What if the guest says there were no allergens in the dish?

Never argue. The guest is having a reaction, that's what matters. Focus on providing help and figure out later what went wrong in your allergen records.

How do I prevent cross-contamination in the kitchen?

Use separate cutting boards, knives, and pans for allergens. Wash hands between preparations. Store allergenic ingredients separately and label clearly.

⚠️ EU Regulation 1169/2011 — Allergen Information https://eur-lex.europa.eu/eli/reg/2011/1169/oj

The allergen information on this page is based on EU Regulation 1169/2011. Recipes and ingredients may vary by supplier. Always verify current allergen information with your supplier and communicate this correctly to your guests. KitchenNmbrs is not liable for allergic reactions.

In the UK, the FSA enforces allergen regulations under the Food Information Regulations 2014.

ℹ️ This article was prepared based on official sources and professional expertise. While we strive for current and accurate information, the content may differ from the most recent regulations. Always consult the official authorities for binding standards.

📚 Sources consulted

Food Standards Agency (FSA) https://www.food.gov.uk

The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.

JS

Written by

Jeffrey Smit

Founder & CEO of KitchenNmbrs

Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.

🏆 8 years kitchen manager at 1NUL8 Group Rotterdam
Expertise: food cost management HACCP kitchen management restaurant operations food safety compliance

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