Manufacturing method of container final stage drink

A problem of this invention is to offer a manufacturing method of a container final stage drink which can maintain a flavor and flavor well without using a heat-resistant container and needing heat sterilization and cooling after sealing by enabling normal temperature filling which restrains the use of a medicine and sterile water and easing heat deterioration of a content. After the method of the present invention performs heat sterilization of the content to a predetermined sterilization value beforehand, the content is cooled to normal temperature rapidly, and accumulated in a storage tank sterilized on the condition more than equivalent to the condition of the heat sterilization of the content beforehand. By sending the content to a filler sterilized on the condition more than equivalent to the condition of the heat sterilization of the content beforehand while the storage tank is held by sterile gas at positive pressure, the system sending liquid from the storage tank to the filler is made into a closing