Most restaurants leave money on the table with their allergen-free dishes. You've got gluten-free or vegan stars sitting right there on your menu, but they're invisible to the customers who'd pay premium prices for them. Explicit labeling transforms hidden gems into profit drivers.
Why allergen-free Stars drive profits
Stars are your popular and profitable dishes. If these happen to also be allergen-free, you've struck gold. These guests:
- Have limited choices, so they're less price-sensitive
- Value transparency and pay extra for it
- Come back more often if they feel safe
- Bring friends who also have allergies
Step 1: Identify your allergen-free Stars
Pull your sales figures from the last 3 months. Which dishes do you sell the most? Check which of these happen to be allergen-free.
💡 Example:
Restaurant 'The Kitchen' - top 5 dishes:
- Steak with fries: 180 portions/month (can be gluten-free)
- Salmon with vegetables: 165 portions/month (gluten-free)
- Pasta carbonara: 150 portions/month (not gluten-free)
- Caesar salad: 140 portions/month (can be gluten-free)
- Risotto: 130 portions/month (gluten-free)
3 out of 5 top sellers are already gluten-free or can be made that way!
Step 2: Calculate your current margin per Star
For each allergen-free top dish, calculate the current margin:
Margin per dish = Selling price excl. VAT - Ingredient costs
💡 Example: Salmon with vegetables
- Menu price: €26.50 incl. VAT
- Price excl. VAT: €26.50 / 1.09 = €24.31
- Ingredient costs: €8.20
- Margin per portion: €24.31 - €8.20 = €16.11
At 165 portions/month = €2,658 margin
Step 3: Simulate price increase through explicit labeling
Allergen-conscious guests pay 8-15% more for explicitly labeled dishes. Test this carefully with a price increase of €2-4. I've seen restaurants miss this opportunity completely – a mistake that costs the average restaurant EUR 200-400 per month in lost revenue from their naturally allergen-free dishes.
⚠️ Note:
Start with a small increase of €2. Too much at once will also scare off regular guests who normally order this dish.
Step 4: Calculate the new margin impact
Work out what the extra margin brings in, but account for possible volume loss from regular guests.
💡 Example: Salmon now €28.50 'Gluten-free salmon'
- New price excl. VAT: €28.50 / 1.09 = €26.15
- New margin: €26.15 - €8.20 = €17.95
- Extra margin per portion: €17.95 - €16.11 = €1.84
Suppose you lose 10% volume due to price increase:
- New volume: 165 × 0.9 = 149 portions
- New total margin: 149 × €17.95 = €2,675
- Difference: €2,675 - €2,658 = +€17/month
Step 5: Monitor and optimize
Test for 2-3 months and measure:
- Volume change per dish
- New customers coming specifically for allergen-free options
- Average check value from allergen-conscious guests
- Complaints or feedback about prices
A food cost calculator can help you see your margin per dish directly and easily run different scenarios.
How do you calculate the margin impact of allergen-free Stars?
Inventory your current Stars
Pull your sales figures from 3 months and identify your 5 best-selling dishes. Check which of these are already allergen-free or easy to adapt.
Calculate current margin per dish
For each allergen-free top dish: subtract ingredient costs from selling price excl. VAT. Multiply by monthly volume for total margin.
Test price increase of €2-4
Increase the price by €2-4 and explicitly label 'gluten-free' or 'vegan' on your menu. Monitor volume change over 8 weeks.
Calculate new margin impact
Work out: (new margin per portion × new volume) - (old margin × old volume). This is your net impact per month.
✨ Pro tip
Track your top 3 allergen-free dishes for exactly 6 weeks after explicit labeling. Document not just sales volume, but also customer comments and repeat visits from new allergen-conscious guests.
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
How much more can I charge for gluten-free dishes?
Allergen-conscious guests pay on average 8-15% more for explicitly labeled dishes. Start carefully with €2-4 extra to avoid scaring off regular guests.
Will I lose customers by explicitly labeling allergen-free?
You may lose 5-10% volume from regular guests, but you'll attract a new target audience. Allergen-conscious guests come back more often and typically order more expensive items.
Which allergen-free dishes are most profitable?
Gluten-free meat and fish dishes typically perform the strongest. These naturally have higher margins and the adaptations are minimal.
Do I need to buy separate allergen-free ingredients?
Only if absolutely necessary. Many dishes are naturally allergen-free. Focus on these 'free' wins first before making extra purchasing costs.
How do I prevent cross-contamination with allergen-free Stars?
Use separate cutting boards, clean pans, and separate utensils. Train your kitchen team and document procedures. One mistake can damage your reputation and revenue for years.
Should I create a separate allergen-free menu section?
Not necessarily – scattered placement throughout your regular menu often works better. Guests with allergies will scan the entire menu anyway, and it doesn't segregate these dishes from other diners.
What if my allergen-free Stars require expensive specialty ingredients?
Calculate the true cost difference first – sometimes it's only €0.50-1.00 more per portion. If you can charge €3-4 extra, the math still works beautifully in your favor.
⚠️ 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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