Japanese tea
Refers to tea produced in Japan, typically green tea such as sencha, matcha, or gyokuro. Often contrasted with Chinese tea or black tea.
日本茶の中では、煎茶が一番よく飲まれている。
Among Japanese teas, sencha is the most commonly drunk.
この店ではいろいろな日本茶を試飲できます。
You can sample various Japanese teas at this shop.
紅茶 refers to Western black tea, whereas 日本茶 covers Japanese teas (mainly green) as a broader contrasting category.
Compound of 日本 (Nihon, 'Japan') and 茶 (cha, 'tea').