Air pump soft serve yogurt ice cream machine 2,Pre-cooling 3,Keeping temperature at night 4,Low mix alarm BQ818Y soft serve yogurt ... Pump System of High Quality (Compared to ice cream made by common machines, the ice cream is softer and smoother. The run out ... and prepare adding ice cream material in advance.)5,Counter for Ice Cream (It is helpful to check the cost.) air pump soft ice cream machine