The picture illustrates how to produce frozen fish pies from potatoes and salmons

The picture illustrates how to produce frozen fish pies from potatoes and salmons. As is observed, this process entails multiple successive stages, commencing from transporting potatoes and fresh salmons to a factory, and culminating in distributing fulfilled products. The initial step occurs with shipping potatoes within one month to the factory by heavy trucks. Subsequently, the potatoes are washed to remove impurities, peeled, chopped into bite-size pieces, and then brought to a boil until being tender, respectively. For the next stage, after being chilled, these potato pieces are contained in sealed bags. Simultaneously, fresh salmons are also coveyed by lorries with less than twelve hours to a factory where fresh salmon fillets also experience a preliminary process, including being marinated in the juice of lemon, and salt before being baked in a steam oven. Following that step, workers inspect the fillets after eliminating skins and bones so that these fillets become boneless and skinless. Once these steps are finalized, these qualified fillets are put in a baking bowl, then the layers of freeze-processed peas, dressing, and processed potato sticks are added sequentially. Ultimately, these packages are placed in a freezer to be well-preserved and then delivered to supermarkets or suppliers to meet the demands of customers.