Provides a milk coffee beverage contained in a vessel having an excellent hypotensive effect .to the condition (A) ~ (C):(A) 0.01 to 1 mass flow chlorogenic acid %,(B) hydroxy- hydroquinone chlorogenic acid is less than 0.1 mass % of ryuryang(C) pH 5.0 ~ 6.4 milk coffee beverage contained in the container .우수한 혈압 강하 작용을 갖는 용기에 담긴 밀크 커피 음료의 제공.하기의 조건 (A) ∼ (C) :(A) 클로로겐산류 0.01 ∼ 1 질량%,(B) 하이드록시하이드로퀴논 클로로겐산류량의 0.1 질량% 미만(C) pH 5.0 ∼ 6.4 인 용기에 담긴 밀크 커피 음료.