AllergyPassHidden Allergens
in French Food
Butter, cream, and flour get most of the warnings, but escargots, the cheese course, and a wheat crepe served instead of a buckwheat galette also deserve specific questions. Here is where those details appear on a French menu.
France
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Escargots: molluscs, not crustacean shellfish
Escargots de Bourgogne are land snails usually baked in garlic-parsley butter. In EU allergen information, molluscs and crustaceans such as shrimp, crab, and lobster are separate categories. Ask whether your allergy includes molluscs, what the dish is cooked with, and whether the butter contains dairy. Do not use “shellfish” as a shorthand for your own medical history; name the specific category you need to avoid.
Crepes vs. galettes: the gluten swap that isn't automatic
Sweet crepes usually use wheat flour. Savory galettes bretonnes are traditionally made with buckwheat, but a buckwheat batter does not answer the cross-contact question for someone with coeliac disease or wheat allergy. Ask about the flour, batter tools, griddle, utensils, and fillings. A creperie that cooks wheat crepes and galettes on the same surface may not be able to meet your needs.
Moules-frites: shellfish with a side risk
Moules-frites combines mussels with fries, often in a broth made with wine, cream, or tomatoes. Ask about the mussels, broth, stock, and any bread served alongside them. If you avoid wheat or need to avoid gluten, ask whether the fries share a fryer with breaded foods. If you avoid shellfish, ask about shared pans, strainers, serving utensils, and preparation areas.
The cheese course: dairy risk after you thought you were done
A traditional French meal may include starter, main, cheese, and dessert. Some restaurants offer the fromage course between the main and dessert, while others do not. If you avoid dairy, say so when you are seated and ask whether cheese, butter, cream, or a dairy accompaniment is part of the planned service.
Foie gras and pate: bread, nuts, and egg
Foie gras and country-style pâté are often served with toast, brioche, or pastry. Some pâté recipes include pistachios, hazelnuts, or other tree nuts, and pâté en croûte uses a pastry crust that may include wheat and egg. Ask about the filling, bread or pastry, sauces, and any nuts mixed into the recipe rather than asking only about the dish name.
Wine and sulphites at the table
Sulphur dioxide and sulphites are included in EU allergen information. Wine or an aperitif may arrive as part of a tasting or set menu, so ask about sulphites before accepting it. Kir combines wine with crème de cassis, a blackcurrant liqueur; ask about the full recipe if you need to avoid a particular ingredient rather than assuming the drink name answers it.
Where each allergen appears
Sources and food-safety notes
- Service-Public (French government): Quels allergènes doivent être mentionnés sur un produit alimentaire ? — The French mandatory-allergen table. Crustaceans and molluscs appear as separate entries, and sulphur dioxide and sulphites are listed above 10 mg/kg or 10 mg/l — the two distinctions this guide turns on.
- World Health Organization / FAO: Risk assessment of food allergens, part 1: review and validation of the Codex priority allergen list (2022) — The 2022 expert review behind the current priority-allergen list, and the reason buckwheat, celery, lupin and mustard are treated as regional priorities alongside the global eight.
Frequently asked questions
What should I ask about escargots?
Escargots are land snails and are classified separately from crustaceans such as shrimp, crab, and lobster in EU allergen information. Ask whether your own allergy includes molluscs, what the escargots are cooked with, and whether the garlic-parsley butter contains dairy. Do not use the word “shellfish” alone to assume that the dish is or is not suitable for you.
What should I ask about crepes and galettes?
Standard sweet crepes usually use wheat flour. Galettes bretonnes are traditionally made with buckwheat, but a galette is not automatically suitable for coeliac disease or wheat allergy: ask about the flour, shared batter tools, griddle, utensils, and fillings. Confirm the preparation with the creperie before ordering.
What should I ask about the French cheese course?
Ask at the beginning of the meal whether a cheese course or dairy accompaniment is part of the service, and tell the restaurant that you need to avoid dairy. A fromage course may be offered between the main dish and dessert, but the menu and service format vary.