#$%^&*AU2010241186B220141009.pdf#####ABSTRACT A tank (1) for tempering cocoa butter containing mass is 5 provided. This tank which is equipped with a scrapper (2) and an impeller (5), characterized in that the impeller (5) induces a downward current of the cocoa butter containing mass in the tank. The tank allows for tempering cocoa butter containing mass in a single step wherein the temperature is 10 decreased from an initial temperature of 530C to 570C to a final temperature of 300 C to 320C.