Black tea — a type of tea that is fully oxidized, corresponding to English 'black tea'.
朝は紅茶を飲むのが習慣だ。
I usually drink black tea in the morning.
紅茶にミルクを入れて飲む人も多い。
Many people add milk to their black tea.
このカフェの紅茶は香りが良い。
The tea at this cafe has a good aroma.