A drink package is manufactured by a method including the steps of: blasting hydrogen peroxide mist (M) or gas (G) into a container (2) in an erected attitude through a mouth portion (2a) activating the hydrogen peroxide in the container (2) in an inverted attitude by blasting heated aseptic air (N) through the mouth portion (2a) thereof directed downward, and simultaneously, removing foreign substance (P) from the inside of the container (2) by replacing air in the container (2) with the aseptic air (N) filling the container (2) in the erected attitude with drink (a) through the mouth portion (2a) directed upward and closing the mouth portion (2a) of the container (2) by applying a lid (3) to the mouth portion (2a) of the container (2).
