This is a milker. When the cows come into the parlor, we wash their udders with an iodine-based solution to clean off anything that might be on the teats. Then we put the milker on. The milkers are designed to mimic (as closely as a machine can) the action of a calf suckling in order to get the milk out of the cow.
Once the milk is in the milkers, it is pumped through a pipeline, a holding tank or 'jar', and our plate cooler (which cools the milk down) before ending up in our bulk tank. (This one is in our winter barn.) The bulk tank is essentially a very large cooler with a paddle inside. It keeps the milk between 35 and 38 degrees while the paddle stirs the milk to help keep the milk at a constant temperature.
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