Picture this: a guest mentions a shellfish allergy, and you're staring at your seafood pasta special with no allergen documentation in sight. This scenario strikes fear into any restaurant owner's heart. But safety trumps speed every single time.
The golden rule: honesty over speed
If a guest mentions an allergy and you're not sure, never make a guess. A wrong guess can be life-threatening. It's much better to wait a moment than to take a risk.
⚠️ Heads up:
Never say "I think it's fine" or "there's probably no X in it". With allergies, there's no such thing as "probably".
What you can do right away
There are a few steps you can always take, even without documentation on hand:
- Let them know you'll check: "Let me check that for you right away"
- Head to the kitchen: Ask your chef or cook who made the dish
- Check the packaging: Look at ingredient packaging and labels
- Offer alternatives: Suggest dishes you're 100% sure are safe
💡 Example situation:
Guest asks: "Does the chocolate mousse contain nuts?"
You're not sure. Then say:
"Let me check that for you right away. Can I get you a drink while I look into it?"
Digital allergen tracking saves the day
These situations happen way less often if you've got your allergen information organized digitally. From tracking this across dozens of restaurants, I've seen how tools like food cost calculators with allergen features keep all dish information right on your phone.
Benefits of digital tracking:
- All dishes with allergens in one app
- Always on hand (on your phone)
- Quick searchable by allergen
- No risk of losing it like with paper lists
💡 Practical example:
Guest has a nut allergy. Instead of running to the kitchen, you check directly in the app:
- Chocolate mousse: contains hazelnut
- Tiramisu: no nuts
- Crème brûlée: no nuts
Within 30 seconds you can suggest alternatives.
Communication with the guest
How you communicate matters just as much as what you say. Guests with allergies deal with these situations regularly and they respect honesty.
Good communication:
- "Let me check that for you right away"
- "Safety comes first, so I want to be sure"
- "I have a few alternatives that are definitely safe"
Avoid this:
- "I think it's fine"
- "There's probably no X in it"
- "Other guests with that allergy eat it too"
Prevention: make sure you're prepared
Obviously, the smartest move is preventing this situation entirely. That means getting your allergen information organized and accessible.
✨ Pro tip:
Create a laminated reference card listing your 10 most popular dishes with their allergens and keep it at the register. You'll answer 80% of allergy questions within 15 seconds.
The 14 mandatory allergens
In the EU there are 14 allergens that must be declared. Make sure you know these:
- Gluten (wheat, rye, barley, oats)
- Crustaceans (shrimp, lobster, crab)
- Eggs
- Fish
- Peanuts
- Soy
- Milk (including lactose)
- Nuts (almond, hazelnut, walnut, etc.)
- Celery
- Mustard
- Sesame seeds
- Sulfur dioxide and sulfites
- Lupin
- Mollusks (mussels, squid)
⚠️ Legal requirement:
As a restaurant, you're legally required to be able to provide allergen information. "I don't know" is not a valid answer under the law.
Step-by-step plan: guest mentions allergy without documentation on hand
Acknowledge and reassure
Say right away: "Let me check that for you right away, safety comes first." Let the guest know you take it seriously and offer them a drink while you check.
Check the source
Head to the kitchen and ask the chef or cook who makes the dish. Check ingredient packaging and labels. Use your digital allergen registration if you have one.
Give a clear answer
Come back with a clear yes or no answer. If in doubt: offer alternatives you're 100% sure are safe. Explain what you've checked.
✨ Pro tip
Create a laminated reference card listing your 10 most popular dishes with their allergens and keep it at the register. You'll answer 80% of allergy questions within 15 seconds.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
Can I say I don't know?
No, as a restaurant you're legally required to provide allergen information. You need to find out or offer alternatives that you're certain about.
What if the chef isn't there?
Check ingredient packaging and labels directly. If in doubt, offer dishes you're absolutely sure are safe, like a simple salad with basic ingredients.
How long can a guest wait for an answer?
A few minutes is acceptable for allergy verification. Guests with allergies expect this. Just communicate that you're checking and offer them a drink while they wait.
Can I be held liable for wrong information?
Yes, if you give incorrect information and a guest has a reaction, you face serious liability risks. Never guess or estimate with allergies.
Should I mention cross-contamination risks?
For serious allergies, absolutely. Be upfront if dishes are prepared in the same kitchen where allergenic ingredients are also used.
What about ingredients in pre-made sauces or dressings?
These are common hidden allergen sources. Always check labels on pre-made items like Caesar dressing (anchovies), pesto (nuts), or Worcestershire sauce (fish).
How do I handle multiple allergens from one guest?
Take notes and double-check each allergen separately. Multiple allergies require extra care and it's often safer to suggest simple, made-to-order items.
⚠️ 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.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
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.
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.
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