According to the present invention, there is provided a container filled with a light-shielding container and having a viscosity of 50 mPa · s or more and containing a thickening agent, and a container-filled pouring-down difficulty drink.본 발명에 의하면 증점제를 함유하고, 50mPa·s 이상의 점도를 가지고, 차광성 용기에 충전된 용기 충전 연하곤란자용 음료가 제공된다.