On average, it takes around five minutes for a cow to milk out. There is a milk flow meter attached to each milking unit. When this meter senses that the cow is producing less than two pounds per minute, the milker claw automatically retracts from the cow. At this point, an iodine based, skin conditioning “post dip” is applied to the cow. The cow is then released from the milking parlor, where she then makes her way out to the feedbunk to eat.