"Flottabatch" Flottabatch unit assures a discontinuos separation of the solids from grape must and grape juice using tanks existing in the plant, utilizing the dispersed gas activated flotation process. Flotation is the opposite of decantation process. Dispersing air or inert gas in the juice, the finely subdivided bubbles unite with the suspensed solids making them lighter and causing their surfacing. Before flotation the juice is enzymed and treated with clarifying agents in order to fluccolate its colloidal substances.