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Withering Of Black Tea

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What Is Dark Tea?

What Is Dark Tea?

2021-10-08 14:00:04

Dark tea is one of the six major teas in China, with a long history of development. At the same time, scientific research has also found that this type of tea is rich in various trace elements beneficial to the human body, which can regulate the body\'s internal balance.

Processing 25kg Finished Oolong Tea By Machines

Processing 25kg Finished Oolong Tea By Machines

2021-09-28 14:47:40

How to processing oolong tea by machines? Oolong tea is a kind of tea with complicated process steps. Our company is located in famous oolong tea hometown, supply machines from withering to drying. Welcome your contact!

How To Make 25KG Finshied Black Tea By Machines?

How To Make 25KG Finshied Black Tea By Machines?

2021-09-07 14:51:40

How to process 25kg striped black tea from 100kg fresh tea leaf ? striped black tea need tea withering process, rolling process, tea fermentation and drying, here are machines for your reference and checking.

How To Make 25Kg Finished Green Tea By Machine?

How To Make 25Kg Finished Green Tea By Machine?

2021-09-01 16:14:22

Machines for making green tea, need four steps, tea withering, tea fixation, tea rolling, and tea drying. Mastering the correct processing method will help you make high-end quality tea.

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Quanzhou Deli Agroforestrial Machinery Co., Ltd.
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Withering Of Black Tea

2021-07-20 15:08:21

Withering is the first process in making black tea. Under normal climatic conditions, when fresh leaves are thinly spread for a period of time, water evaporates mainly. With the extension of the withering time, the self-extraction and decomposition of the contents of the fresh leaves gradually strengthened. With the continuous loss of fresh leaf water, the leaves gradually shrink, the leaf quality changes from hard to soft, and the leaf color changes from bright green to dark green. At the same time, the endoplasm changes and the fragrance also changes. This process is called withering.

The withering process is the physical change of withering on the one hand, and the chemical change of withering on the other hand. These two changes are interrelated and restrict each other. Physical changes can not only promote chemical changes, but also inhibit chemical changes, and even affect the products of chemical changes. Anyway, chemical changes also affect the progress of physical changes. The development and mutual influence between the two vary greatly depending on the external conditions such as temperature and humidity.

The external conditions that affect withering are firstly water evaporation, secondly temperature, and again the length of time. Among them, temperature has the most significant effect on the quality of withered leaves. When using the tea withering machine to wither, it is advisable to adopt the operating principles of “large first and then small” and temperature “first high and then low”. Master a certain amount of time to achieve the required degree of withering.