A teat cup cleaning unit comprises a distribution unit which has an inlet 4 and at least two outlets 5 for a cleaning liquid, where the distribution unit has a calming chamber 6 and a distribution chamber 7. The calming chamber 6 is connected to the distribution chamber 7 via an opening 8 , the calming chamber 6 being formed with the inlet 4 and the distribution chamber 7 being formed with the at least two outlets 5.