Beverage preparation method and sterilization filling device for implementing the method

The invention provides a preparation method for a bottled beverage prepared by concentrated liquid and drinking water; the method comprises that the main components and auxiliary components of the beverage are prepared to be the concentrated liquid, and then the concentrated liquid is sterilized singly while the drinking water is sterilized by ozone; at last the mixture is mixed and filled according to the ratio of the concentrated liquid and the drinking water under aseptic condition. The preparation method of the invention sterilizes the concentrated liquid and the drinking water separately; the drinking water uses a mature ozone sterilizing technique which can avoid the heat loss caused by heating and cooling, and can save energy greatly. The invention also provides sterilizing filling equipment that can realize the preparation method of the beverage; the filling equipment comprises a sterilizing device of the concentrated liquid, a sterilizing device of the drinking water and a mixed filling device; the sterilizing device of the drinking water is an ozone sterilizing device. The sterilizing filling equipment of the invention can carry out the continuous flow process from the sterilization to the filling, thus improving the production efficiency greatly.