Build an allergen reference card for your kitchen with AI

Allergen confusion is one of the few mistakes in a restaurant that can hurt people. It also slows service every shift. A clear, kitchen-side allergen card — built from your actual menu, not a generic template — saves both. AI helps you produce it in 30 minutes.

⚠️ Important disclaimer first

This playbook helps you organize what your kitchen already knows. It does NOT replace your responsibility to verify every ingredient with your suppliers, train staff, and follow local food-safety law. AI cannot tell you what’s in your ingredients — only your suppliers can. Always treat AI output here as a draft to verify, not a source of truth.

What a useful allergen card looks like

Not a flowery PDF. A laminated 8.5×11 sheet, hung in the kitchen and at the host stand, with:

One row per menu item
Columns for the 9 major allergens (US): milk, eggs, peanuts, tree nuts, soy, wheat/gluten, fish, shellfish, sesame
A “modifiable to remove” column (e.g. “gluten — yes, sub GF pasta”)
Cross-contact warnings where they apply

That’s it. A new server can look at it during their first shift. A guest asking “is this dish dairy-free?” gets an answer in 5 seconds, not 5 minutes.

The allergen card prompt

📋 Prompt — copy & paste v1

I need an allergen reference card for my restaurant kitchen, based
on my menu. You will produce a DRAFT only — I will verify every ingredient
with my actual suppliers before publishing.

OUTPUT FORMAT — markdown table with these columns:
| Item | Milk | Egg | Peanut | Tree nut | Soy | Wheat/Gluten | Fish | Shellfish | Sesame | Modifiable | Cross-contact risk |

For each cell:
- ✓ if the item contains the allergen (per typical preparation)
- ✗ if it does not
- ? if uncertain — list these explicitly in a "TO VERIFY" section after the table

For "Modifiable":
- "GF: sub gluten-free [item]" if a swap exists in our kitchen
- "DF: omit cheese / butter" etc.
- "—" if no easy modification

For "Cross-contact risk":
- One short note per item where realistic ("shared fryer with shrimp",
"same prep surface as bread", "sauce contains soy")
- "—" if standard

CONSTRAINTS:
- Be CONSERVATIVE. If unsure, mark "?" and list in TO VERIFY. Never guess.
- Common hidden allergens to specifically check: soy lecithin in chocolate,
sesame in commercial breads, fish sauce in Asian dishes, anchovy in Caesar,
egg in fresh pasta and many breads, milk in butter-based mother sauces.
- Output a "Cross-contact NOTE" paragraph at the bottom listing kitchen-wide
realities the table can't capture (e.g. "all fryers shared", "all pasta
cooked in same water", "open prep area means trace risk on all items").

MENU (with ingredient lists where I have them):
[paste full menu and any ingredient notes you have]

Works in: ChatGPT · Claude · Gemini · Always run with Claude or GPT-4 — older/smaller models miss hidden allergens

The verification step (do not skip)

After AI gives you the draft, sit at your prep station with your sous chef and the suppliers’ product sheets. Three rules:

Every ”?” gets resolved before printing. Either confirm to ✓/✗ or note “VERIFY WITH SUPPLIER — DO NOT SERVE TO ALLERGIC GUESTS UNTIL CONFIRMED” right on the card.
Suppliers change ingredients. Re-verify the card whenever you switch a vendor or accept a substitute product. Mark a “last verified” date on the card itself.
Brand-name products that change formulas (mayonnaise, BBQ sauces, hot sauces, breads) are the #1 source of allergen errors. Spot-check these quarterly.

How to deploy the card

Laminated copy at host stand — the host fields the question first
Laminated copy at expo — the chef calling the pass uses it
Digital copy in your team’s group chat — any server can pull up during service
Allergen-specific symbols on the printed menu for guests — check your local jurisdiction; many areas now require this

What to tell guests when uncertain

The card may say ”?” for an item you haven’t fully verified yet. The right response to a guest in that case is honest:

“I want to be straight with you — I’d rather not serve you that dish until we double-check the supplier. Can I suggest [verified alternative]? Or we can verify with the kitchen and I’ll come back to you in 2 minutes.”

That answer protects them, protects you, and is the right thing to do.

What AI is NOT for here

Final verification. Suppliers, package labels, and your trained staff are the source of truth — never AI.
Replacing food-safety training. The card is a job aid, not a substitute for ServSafe / equivalent training.
Local labeling regulation. Allergen labeling rules vary by city and state. Always check your local food-safety code.

The headline: allergen safety is your job, not AI’s. AI just makes the organizing part faster so you can focus on the verification. Treat the card as a starting point, never an ending point.