Abstract: A process for improving the flavor and/or the mousseux of sparkling wines is described. Sparkling wines are wines which contain a permanent visible excess of carbon dioxide, like champagne, Sekt, crackling wines and vino spumante. Of said sparkling wines the most preferred organoleptic properties, i.e. flavor, fragrance and taste, which is also influenced by the special properties of the excess carbon dioxide of said sparkling wines, and also the most desirable formation of small carbon dioxide bubbles when the bottle is opened, i.e. the most preferred mousseux, have such sparkling wines which are prepared according to the time consuming and very expensive champagne method. In the present process the flavor and/or the mousseux of any kind of sparkling wines, i.e.