The pictures illustrate the process by which frozen fish pie is generated from potatoes and fresh salmon together with some necessary ingredients.
Overall, there is a dual process, which is named Potatoes and Fresh salmon, starting at different junctures. Notably, an automatic method is applied to the potato process, whereas the other combines manual labour and technology.
Potatoes are the first ingredient to be prepared on the production line. They are delivered to the factory up to a month before the process begins, and they must be cleaned, peeled and sliced. Potato peelings are thrown away, and the sliced potatoes are boiled, then chilled and stored.
When fresh salmon arrives at the factory, lemon juice and salt are added, and the fish is cooked in a steam oven within 12 hours of delivery. Next, factory workers remove and dispose of the skin and bones, and the fish is inspected. Following this, pre-prepared peas, sauce and potatoes are added. The resulting products are wrapped, frozen and then stored or dispatched.