Are French fries gluten-free? The potato is, the fryer decides

The potato is gluten-free. Whether the fries are depends on two things: what is on them and what else is cooked in the same oil.

What to check

• The fryer. If battered fish, breaded chicken or onion rings go into the same oil, the fries pick up gluten. Ask: “Do the fries have their own fryer?”
• Coatings. Some “extra crispy”, “seasoned” or “beer-battered” fries have a wheat-flour coating. On a bag, read the ingredients.
• Flavourings. A few fast-food fries list wheat in their flavouring. Check the allergen list for the country you are in, because recipes differ.
• At home: plain frozen fries or your own cut potatoes in clean oil are the easy win.

Keep reading

• Shared fryers: what they mean for gluten-free fries
• Are potatoes gluten-free?
• Are crisps gluten-free?

Sources: EU Regulation 1169/2011 (Annex II: cereals containing gluten, and the exemptions for wheat-based glucose syrups including dextrose and wheat-based maltodextrins), Coeliac UK, Codex Alimentarius (gluten-free = 20 mg/kg or less). Checked 28 September 2026. We inform, we don’t diagnose: for medical questions, your doctor or dietitian has the last word.