Food and dish guide
Potato gratin: allergens and what’s inside
Of 267 packs of potato gratin whose ingredients Open Food Facts reads in full, 98% list milk and 30% list gluten. Another 38% carry a “may contain” line for fish. Most list salt, potato and cream.
By Bravoora teamUpdated Sources checked 3 sourcesHow we check
Not for you
for a milk allergy profile, on 98% of these packs
Which allergens are in potato gratin?
Of 267 packs of potato gratin whose ingredient list Open Food Facts reads in full, 98% list milk, 30% list gluten, 27% list egg and 17% list sulphites. Another 38% carry a “may contain” line for fish, 37% for celery and 33% for soy. Recipes differ from pack to pack, so the label in your hand is the one that counts.
Not for you when most of these packs list the allergen, Heads up when fewer do or only a “may contain” line names it. In the app, a profile gets Not for you on a pack that lists the allergen and Heads up on one whose “may contain” line names it: it reads the pack in your hand, not these counts.
Read the milk guide · Read the gluten guide · Read the eggs guide
What is potato gratin usually made of?
The ingredients most packs of potato gratin list, with the share of packs that list each: salt (98%), potato (95%), cream (91%) and onion-family vegetable (87%).
Packs in Open Food Facts, by country of sale: France 545 · Germany 36 · Belgium 35 · Sweden 17.
Counted on 13 October 2026 from the Open Food Facts product database, which volunteers fill from real packs: it shows what these packs list, not every recipe for potato gratin.
Calories and nutrients
Not shown here. Open Food Facts records calories and nutrients per 100 g or per 100 ml without saying which, so a figure for all these packs together could mislead. The pack you buy prints its own, and that is the figure to log.
What kind of food is potato gratin?
In the Open Food Facts categories, potato gratin is one of the gratins.
What else is potato gratin called?
- French
- Gratins de pomme de terre, Gratin de pomme de terre
- German
- Kartoffelgratin
- Italian
- sformati di patate
- Dutch
- Aardappelovenschotels
Bravoora reads every pack for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dietitians, doctors and trainers
Sources
Every share is counted over the packs whose ingredient list Open Food Facts reads in full. A pack lists an allergen when Open Food Facts’ allergen field names it, or when one of its ingredients stands for it by the same two-of-three checks as the ingredient dictionary (tahini is sesame, a cheese is milk). A “may contain” line counts only for an allergen the pack does not list.
- Open Food Facts: product database, 4,535,553 products, read 13 October 2026, ODbL
- Open Food Facts: categories and ingredients taxonomies (names, kinds, allergens), ODbL
- Open Food Facts: Potato gratin
Contains information from Open Food Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this guide’s data · How we check
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