They have a disclaimer about cross contamination but we havent had any issues. Even the most sensitive in my family has had issues. However, be careful, i ordered a gf pizza that had chicken on it and they rannout of grulled chicken and started putting breaded chicked on it. The person making it was new and they corrected it by starting a new pizza. Also, they have a list of what toppings would be gluten free. The alfredo sauce is NOT gf so I always get the garlic sauce which is.