The Cold Chain

Refrigeration is used at many stages of food production, this is known as a Cold Chain. Using refrigeration at each stage ensures that products are preserved safely between cultivation and your plate. Chilling, freezing and storing food is a substantial industry. Below is an example of a cold chain for frozen peas. Did you know peas are frozen and packed ready to be sent to the shops within hours of having been picked in the field?

1

Peas are grown in farms in the countryside.

2

The fresh peas are harvested by automated picking machines.

3

The harvested peas are transported quickly to a processing plant.

4

At the processing plant the peas are removed from their pods, washed, frozen and packed.

5

Packets of frozen peas are loaded into refrigerated vehicles ready to transport to the supermarket with the temperature controlled and maintained at freezing.

6

The supermarket stores them in a refrigerated cold room or in the shop floor in the freezer cabinets.

7

They are bought and transported home or delivered by the supermarket. They end up in the freezer compartment of your fridge at home - or on your plate!

Pea soup recipe

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