What Is Cross-Contact and Why Does It Cause Reactions?
Use the free tool — Allergy Menu Card
Why a Written Card Matters
About 1 in 13 US children has a food allergy, according to FARE. Every kitchen already serves them. A written card that names the allergen and how severe it is helps a line cook understand fast, even when the ticket and the server don't pass along every detail.
What Is Cross-Contact?
Cross-contact happens when a food that doesn't contain an allergen still touches it — through a shared fryer, grill, or utensil. FARE's dining-out guidance says this causes reactions even when the dish itself "contains none" of the allergen. The allergen isn't in the recipe. It's on the equipment.
The Law Covers Labels, Not Restaurant Kitchens
US law requires the top 9 major allergens to be listed on packaged food labels, under the FDA's FASTER Act. Restaurants have no equivalent labeling rule. That's why a card handed directly to the kitchen — not a menu — is often the clearest warning a server or cook will see.
Kitchen Notes and What a Good Card Includes
Cross-contact risk is different for each allergen. Ask about the specific equipment that matters for the allergy in front of you — for example, the fryer for peanut, or the steamer for shellfish. A chef-ready card built for a 15-second read during a rush should carry three layers:
- On the card — the exact allergen and severity, stated plainly.
- Kitchen notes — the cross-contact specifics and the question to ask the server, for that allergen.
- Good to know — hidden names for the allergen and cuisine-specific watchouts.
Cross-contact language is not optional on a severe or anaphylaxis card. It's the line that explains why "no allergen in the recipe" isn't the same as "safe to eat."
What This Card Does Not Do
This card supports communication. It does not replace medical guidance, epinephrine, or asking the kitchen questions directly. When in doubt, don't eat it. Allergy Menu Card writes communication cards from what you type — it can be wrong, and it is not medical advice. Confirm severity and exceptions with your allergist.
What to Do Next
The free tool reads the allergies and severity you type — nothing else, nothing invented. Type the allergen, the severity, and any allergist-approved exception exactly as your allergist worded it. You'll get a card built for a 15-second read, in English, Spanish, or the language of your trip. Nothing you type is stored.
Allergy Menu Card writes communication cards from what you type; it can be wrong and it is not medical advice. Confirm severity and exceptions with your allergist. Nothing you type is stored.