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

The picture illustrates the two processes for black

tea

production.

While

loose

tea

is made

by

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in

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the traditional way,

tea

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

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

picker to guarantee

the

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apply

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high quality.

Then

, the

tea

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

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

next

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

This

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

Finally

, the leaves are fired and dried. By

this

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

.