This is the dairy farm's bulk tank which is a refrigerated stainless steel storage unit in which milk is cooled quickly and stored until picked up in a bulk tank truck.
This tank holds almost 2,000 gallons (7,500 litres) and is emptied once a week when an insulated tank truck will arrive at the farm. The truck will arrive at approximately the same time for each pickup.
At the farm, the milk is checked before it goes into the tank truck for temperature, odour, appearance and flavour. A sample of the milk is collected for testing. The truck driver then takes the milk to a processing plant.