Abstract: The invention concerns a device for filling bottles, especially plastic bottles, with a liquid, wherein said device includes an air separation liquid station (12), a flash pasteurization station (14), a station (16) for saturating the liquid with a sterile inert gas with respect to the liquid, a bottle washing station (106) and stoppers with a liquid disinfectant with under hood drying in a treated atmosphere, a bottle filling station (108), preferably by means of gravity filling under a slight partial vacuum, a station (150) for degassing the inert gas, and a stoppering station (152).