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 mould , characterized in that it includes injection means for injecting at least one beverage into a recess in the preform so as to promote expansion of the preform inside the mould , the mould defining the shape of the container , said injection means comprising an injection head designed to inject at least one beverage through a mouth of the recess , said injection head being integrated into the mould .