When to use bitter taste in Korean
Korean: 쓴맛[ sseun-mas ]

When to use it
쓴맛 means the bitter taste of food or drinks. You use it when something is not sweet and has a strong, sharp taste, like coffee, dark chocolate, or medicine. People often talk about whether they like 쓴맛 or how strong it is.
Example sentences
집에서 마신 커피는 쓴맛이 강해요.
The coffee I drank at home has a strong bitter taste.
학교 앞 카페의 커피는 쓴맛이 약해요.
The coffee at the cafe near the school has a weak bitter taste.
이 약은 쓴맛이 나서 싫어요.
I don't like this medicine because it tastes bitter.
이 초콜릿은 달지만 쓴맛도 있어요.
This chocolate is sweet, but it also has a bitter taste.
시장에서 쓴맛이 적은 채소를 샀어요.
I bought vegetables with less bitter taste at the market.
여행지에서 마신 차는 쓴맛이 났어요.
The tea I drank on the trip tasted bitter.