Tantanmen Jyozen is an izakaya in the Tamachi entertainment district of Chuocho, Kita Ward, Okayama City, serving Okayama tantanmen, ramen and drinking snacks. The tantanmen is built on Setouchi anchovy broth and locally brewed soy sauce, with spiciness selectable in six levels. It stays open until 4 a.m., and morning ramen can be ordered from 5 a.m. to 9 a.m. The sesame in the tantanmen is on the mild side.