Two main dishes are separated before fish pie is wrapped. The process of their production.

The diagrams give information about the manufacture of frozen fish pies.

The diagrams illustrate the production of frozen food consisting of 4 ingredients. Two main dishes are separated before fish pie is wrapped. There is big difference time between delivery raw potatoes and fresh salmon.

The process starts when potatoes from field are arrived to production plant after they are delivered up to a month. They are cleaned before entering the peel process. Then, potatoes are sliced while the waste in peel section is thrown away to waste disposal. The slice potatoes are chilled. Following this, they are boiled and the cooked dishes are stored. At the end, they are delivered to join the next process.

At the same time as the potatoes process begins, the ultimate production of fish pie establishes when fresh salmon is carried and sprayed by lemon juice and salt less than 12 hours is enrolled steam oven. The skin and bones are removed by labours which inspects by the inspector. While the waste goes through waste disposal, peas and sauce have been prepared. Next, the cook potatoes are joint the other ingredients and wrapped together. It is brought to freeze step before it is kept in storage.

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There is a big difference in time between the delivery of the raw potatoes and the fresh salmon.

when potatoes arrive, from the fields, to the production plant after they are delivered, usually within a month.

the peeling process.

the wastefrom peel section is thrown away to waste disposal.
--Consider using different words for what is highlighted in blue to avoid too much repetition.

The sliced potatoes

delivered to join the next process

12 hours is a steam oven

removed by laborers, who are check by the inspector

the cooked potatoes are joined with the other

It is then frozen before

--Hope these edits helped! Continue to work on finding different words which mean to same things to avoid repetition. Thesaurus.com helped me a lot when I couldn't think of similar words or phrases for my essays.