The fryer is shared with dairy items so not safe if you also have a dairy allergy. However the is an app for celiacs and in that case they are very good. Never gotten sick gluten wise but stopped eating there are getting sick from the dairy. I told them I have a dairy allergy and they didn't say anything abojt the frier so they should have known that. I feel as if they are well trained in the gluten department but not other food allergies.