The diagram below shows two different processes for manufacturing black tea.

The picture illustrates the two processes for black

tea

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production.

While

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loose

tea

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is made

by

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in

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the traditional way,

tea

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bags are produced by modern machinery . It requires five steps to finish each progress.

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At

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In

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the first stage, only the two leaves and the bud are collected by the

tea

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picker to guarantee

the

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apply

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high quality.

Then

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, the

tea

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is put into the withering chambers, where leaves are spread out and the air passes through them to remove approximately 60 per cent of their moisture. After that, the leaves are ready for rolling or cutting. Factories use either the traditional way of rolling the leaves flat to make loose

tea

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or the faster modern method of cutting, tearing and curling the leaves to make

teabags

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tea bags

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. In both processes, natural enzymes are freed from the leaves.

The

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next

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step is oxidation, where the rolled-up leaves mix with the enzymes in the presence of air.

This

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process changes the colour of the leaves from green to copper and creates a nice flavour and aroma.

Finally

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, the leaves are fired and dried. By

this

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stage, just three

percent

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per cent

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moisture

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of moisture

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remains in the

tea

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.