I was told everything was gluten free here, but I felt a bit unwell after and thought I may have been mildly glutened. I think that perhaps some of the broths do use normal soy sauce- I wouldn’t avoid going here but would definitely ask more questions to confirm all the sauces/ broths are gluten free as well. I’m sure the tempura and soba were definitely gluten free as it was a mild reaction.
Great place for 100% gluten free soba noodles. Staff were well informed and offered a card which explained that the soy sauce, noodles and tempura were all safe.