Hot coffee (as opposed to iced coffee); the common term for warm-brewed coffee served hot.
朝は必ずホットコーヒーを一杯飲む。
I always drink a cup of hot coffee in the morning.
寒い日はホットコーヒーがよく売れる。
Hot coffee sells well on cold days.
この店のホットコーヒーは苦味が強めだ。
The hot coffee at this shop is a bit strong in bitterness.