The invention relates to a device for delivering a beverage into a thermoplastic container formed from a heated preform, the preform being approximately cylindrical and positioned in a mold, characterized in that it includes injection unit for injecting at least one beverage into a recess in the preform so as to promote expansion of the preform inside the mold, the mold defining the shape of the container, the injection unit comprising an injection head designed to inject at least one beverage through a mouth of the recess, the injection head being integrated into the mold.