We stayed in this ryokan during a trip to Kinosakionsen, and chose it specifically because the chef said he could cope with gluten free. He did not disappoint! We had the full keiseki dinner and breakfast the next morning, mine had some variations to my non-coeliac companion’s meal, but I still got all the courses, very delicious. Included miso soup, sashimi, tempura vegetables, rice, pickles, and many dishes I couldn’t identify, plus dessert. To be honest I was sceptical about it being actually gluten free, but everything was fine (I’m coeliac and very sensitive to even small amounts of gluten). Would highly recommend if you want to experience this type of traditional food, which I didn’t have anywhere else in Japan.
— No gluten-free information on the menu