A centrifugal separator for separating milk into a cream phase and a skim milk phase is described. The separator includes a centrifuge bowl, a disc stack of conical discs arranged inside the centrifuge bowl. The disc stack includes a first set of discs and a second set of discs, the discs in the disk stack includes distribution openings such that the milk passes the first set of discs before passing the second set of discs. The discs in the first set of discs are separated from each other by a first distance, and the discs in the second set of discs are separated from each other by a second distance which is smaller than the first distance.
