The picture describes the various stages of producing and packaging milk for commercial sale.
As can be clearly seen in the diagram, there are seven steps involved in this milk production procedure that starts with cow grazing and ends with the final products reaching the customers.
Initially, cows are grazed to produce milk, and then they are milked by the automated milking machine twice a day. In the next stage, the fresh milk is kept in a big refrigeration storage before being delivered to Dairy. The process of collecting, storing, and transporting to dairy factories are repeated daily.
When the fresh milk is delivered to the dairy factories, they are divided into two parts. One part is pasteurized and packaged, another one is converted into dairy products such as cheese, cream and butter. Finally, all the resulting products are moved to the supermarket in order to be ready to reach the hands of customers.