You can't come to Berlin and not have currywurst (I mean they even have a museum for it!! haha). After seeing a lot of reviews online from Coeliacs who said Witty's is safe, I questioned them and they seemed pretty confident and helpful about it. They also assured me that nothing else goes into the chips fryer so they're definitely GF. It was yummy and the chips have a really nice crispy outer layer! The perfect snack after hours of walking in the cold. .