Think of allergen management like a traffic light system for your kitchen. Your chef shouldn't need to decode every ingredient when a guest mentions their allergy. Colors give you instant visual cues about which dishes pose the highest risks.
Why color coding saves time and reduces mistakes
During dinner rush, you can't afford to analyze ingredient lists for every allergy question. A simple color system on your menu, tickets, and recipe cards delivers instant clarity:
- Green: Low allergen risk (0-2 allergens)
- Orange: Medium risk (3-5 allergens)
- Red: High risk (6+ allergens or critical combinations)
💡 Example color classification:
Pasta carbonara contains:
- Gluten (pasta)
- Eggs (in sauce)
- Milk (parmesan)
= 3 allergens = Orange code
Building your system around the 14 mandatory allergens
Your color codes must account for all 14 allergens that restaurants are legally required to track:
- Gluten (wheat, rye, barley, oats)
- Crustaceans
- Eggs
- Fish
- Peanuts
- Soy
- Milk (including lactose)
- Nuts (8 types: almond, hazelnut, walnut, cashew, pecan, brazil nut, pistachio, macadamia)
- Celery
- Mustard
- Sesame seeds
- Sulfur dioxide and sulfites
- Lupin
- Mollusks
Training your team to use the system correctly
Your color codes are worthless if staff don't understand them. Train everyone on what each color means and how to respond. But remember - colors are shortcuts, not replacements for detailed allergen information.
⚠️ Important:
A color code never replaces complete allergen information. Always verify ingredients for severe allergies.
Display codes where your team needs them most:
- Menu (small colored dots next to dish name)
- Kitchen ticket (colored border or sticker)
- Recipe cards (clear color marking)
- Digital order list (background color or symbol)
Accounting for cross-contamination risks
Here's where many restaurants mess up - they only code the recipe ingredients. A 'green' salad becomes 'orange' the moment you prep it on a cutting board that touched bread. Based on real restaurant P&L data, allergen incidents cost establishments an average of $2,400 in lost revenue and reputation damage per occurrence.
💡 Cross-contamination example:
Grilled vegetables (base: green) become orange because:
- Grill is also used for meat with marinades
- Marinades often contain soy, mustard, or gluten
- Cross-contamination via grill grate
Solution: Separate grill zone or clean first
Using digital tools to maintain accuracy
Paper lists become outdated fast. Change one supplier and you've got to recheck dozens of color codes. Digital allergen management tools automatically recalculate codes when you update ingredients.
Digital systems offer these advantages:
- Automatic update when you change an ingredient
- Consistent codes across all locations
- Faster lookup when guests ask questions
- Less risk of human error
How do you set up a color coding system? (step by step)
Inventory all dishes and their allergens
Go through your menu and note all 14 EU allergens in each dish. Also account for cross-contamination: if you grill fish and meat on the same grill, both dishes have the fish allergen.
Determine your color criteria and train your team
Decide which number of allergens becomes green, orange, or red. For example: 0-2 = green, 3-5 = orange, 6+ = red. Train all staff on the meaning and let them practice with example dishes.
Implement codes on all materials
Place color codes on menus, recipe cards, kitchen lists, and digital systems. Test the system for a week and ask your team for feedback. Adjust where needed and make sure everyone uses the codes consistently.
✨ Pro tip
Test your color system on your 8 highest-volume dishes first, then roll it out over the next 30 days. Your team needs time to internalize the codes before you expand to specialty items.
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Frequently asked questions
Do I need a different color for each type of allergy?
No, that becomes too complex. Use one color code for the total allergen risk of a dish. For specific questions, check the full ingredient list anyway.
What if a guest is allergic to something that's not in the 14 EU allergens?
The 14 EU allergens are mandatory, but you can voluntarily add extra allergens. Think of coriander, garlic, or paprika. Add these to your color code calculation if they appear frequently.
How often should I update my color codes?
Every time you change a recipe, switch suppliers, or add new dishes. Check at least monthly that all codes are still correct, especially with seasonal menu changes.
Can I also use the color coding system for vegetarian/vegan?
Yes, you can add extra symbols or colors for dietary preferences. For example: green V for vegetarian, green VV for vegan. Keep it clear though - too many codes become confusing.
⚠️ 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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