The present invention refers to a cleaning method in a milking system (9) comprising a plurality of teat cups (19), each of which is connected to a respective milk line, wherein, during milking of the teats of a milking-animal, the plurality of teat cups (19) are attached to the teats of the animal, and vacuum is supplied to the respective milk lines in order to draw milk from the teats of the milking animal. The cleaning comprises the steps of removing milk or other residues present at each of said plurality of teat cups by means of flushing (37) each of said plurality of teat cups with a cleaning fluid supplied via a supply line (36, 34c); evacuating cleaning fluid from each of said plurality of teat cups or from the supply line, and disinfecting at least one of said plurality of teat cups by means of exposing (60) said at lest one of said plurality of teat cups to steam.