Allergens in risotto: ingredients, variations and how to order safely
By the Menulta editorial team · Facts checked 15 October 2026 · Updated 15 October 2026
The short answer
Risotto rice is naturally gluten-free, but risotto can contain gluten from stock cubes or added ingredients. It almost always contains milk (butter and Parmesan stirred in at the end), often celery (in stock and soffritto) and sulphites (white wine). Seafood risotto adds fish, crustaceans and molluscs, and some risottos are finished with cream or nuts.
What risotto is
Risotto is an Italian rice dish cooked slowly in stock, with the rice releasing starch to create a creamy texture. It usually starts with onion cooked in butter or oil, rice toasted, a splash of white wine, then hot stock added gradually. It is finished with butter and Parmesan, a step called mantecatura.
Because the creaminess comes from the rice itself, risotto does not need cream, but many kitchens add butter and cheese generously.
Traditional risotto ingredients and their allergens
| Ingredient | Allergen | Note |
|---|---|---|
| Arborio or carnaroli rice | None | Naturally gluten-free |
| Onion or shallot | None | |
| White wine | Sulphites | |
| Stock | Celery, possibly gluten | Stock cubes often contain celery and sometimes wheat |
| Butter | Milk | Used to start and to finish |
| Parmesan | Milk | Stirred in at the end |
Variations that change the allergens
Mushroom risotto may use dried porcini and sometimes truffle oil, neither an EU allergen. Seafood risotto (risotto ai frutti di mare) adds prawns, mussels, clams and squid, plus fish stock. Risotto nero uses squid ink (molluscs). Pumpkin risotto may be topped with amaretti (nuts, gluten) or toasted seeds. Pea and mint risotto is usually free of extra allergens.
Some restaurants par-cook risotto rice in advance and finish it to order, which makes small adaptations possible, for example finishing a portion with olive oil instead of butter.
Restaurant and bought-in versions
Restaurant risottos often use bought-in stock cubes or bouillon, which commonly contain celery and sometimes wheat or milk. Ask how the stock is made. Some kitchens finish risotto with cream, which adds more milk.
Risotto allergen by allergen
| Allergy | What to know |
|---|---|
| Gluten / coeliac | Often possible, if the stock is gluten-free and no gluten-containing toppings are used. |
| Milk | Sometimes possible: a portion can be finished with olive oil instead of butter and Parmesan, if par-cooked without butter. |
| Celery | Usually present in stock; a celery-free stock is needed. |
| Sulphites | Present if wine is used. |
| Fish, crustaceans, molluscs | Present in seafood risottos and in fish stock. |
Ordering it with an allergy
Ask which stock is used, whether the risotto is finished with butter and cheese, and whether wine is added. For coeliac disease, confirm the stock is gluten-free. For milk allergy, ask whether a portion can be finished with olive oil and whether the rice was started in butter.
Sources
This guide is general information, not medical or legal advice. Guests with an allergy should follow their doctor's advice. Operators should confirm their own setup with their food safety adviser or local authority.