Abstract: A drink components thermally sterilized and flavors which has been removed of microorganism by filtration are formulated under aseptic conditions, and a mixture obtained is filled into containers. Milk containing soft drinks are produced by a process comprising obtaining soft drinks are produced by a process comprising obtaining a first drink component containing milk and an emulsifier, sterilizing the first drink component at a high temperature and cooling the same, obtaining a second drink component at a high temperature and cooling the same, obtaining flavor component removed of microorganism by filtration, and blending the cooled first drink component and the cooled second drink component with the flavor component under aseptic conditions.