≥75℃ (2019)
- Genre: Drama
- First Air Date: 2019-12-10
- Last Air Date: 2020-01-07
- Total Seasons: 1
- Total Episodes: 5
- Status: Ended
- Episode Runtime: 7 min.
- Production Company: Red Q
- Production Country: South Korea
Tea master Hong won the Winter Course Competition held at the Altdif headquarters. The head of the marketing team, Cha, who came to collaborate, was in disagreement. Will they be able to complete the perfect winter tea?
