Remaining a family business to this day, Kogacha is headed by Koga Satoko, a Nihoncha Advisor and Associate Professor of the Urasenke school of Tea Ceremony. Head of tea blending is 7th-dan chashi Koga Kazuhiro with 6th-dan chashi and Nihoncha Instructor Koga Tomoko managing the team.
Founded in 1938, Kogacha (古賀茶) is dedicated to promoting and improving the true flavour of Yamecha: tea from Yame, Fukuoka. One of their specialties, and a tea well-known from the area, is gyokuro. Additionally, Kogacha produces matcha, sencha, and even experiments with white-leaf teas.
