The Natsumikan or amanatsu is a citrus similar to a small pomelo discovered in Yamaguchi Prefecture, Japan, in 1740. (From Wikipedia) A familiar fruit in Japanese households, it is frequently used as a flavoring.
Hot: Tea: 3g.Time: 90 seconds. Water Temperature: 80˚C/176˚F. Water Amount: 200 ml.
Cold:Tea: 5g. Time: 4 hours in refrigerator. Water: 1L, cold.
Name: Natsumikan (citrus) flavored green tea
Japanese name: フレーバー緑茶、夏みかん
Ingredients: Green tea, orange peel, flavoring
Name: Ocharaka Inc. (Ocharaka Tea Shop)
Location: 3-8-11 Honcho, Kichijoji, Musashino-shi, Tokyo 180-0004 JAPAN
Store location: Coredo Muromachi B1 (Exit A6 from the Mitsukoshimae Station on the Ginza Line).