Green, Oolong, and Black Tea (2026 Update)

Aug 02, 2011 Last reply: 19 hours ago 3 Replies

Primary Tea Processing: green tea, oolong tea, and black tea. In the below table we have listed the types of fermentation and the major processes involved to make various teas. The non-fermented teas consist of green tea. The partial fermentation is oolong tea. Full fermentation is how black tea is made. This classifying and listing by sequence shows the terms for processing of tea. Below we have expanded the processes. For the process of “harvesting” we use the raw tea product identified as “fresh leaves”. Primary Tea Processing (no roasting, scenting, or spicing) -Remember only green, oolong, and black tea are shown.



Table:

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Yes, you are right. Unfortunately, term fermentation is frequantly used for tea oxidation in context of tea processing.

Various temperature and humidity conditions serves to the opposite purposes.

To accelarate oxidation To stop and prevent oxidation.

Green tea is in fact not "cooked" to get oxidized, but to prevent oxidation. It does not undergo hot and wet conditions to accelerate oxidation.

Note that different treatment is not the only difference between green and white one. From leaves used for green tea cannot be done white tea, AFAIK.

The Chinese use their character for fermentation to apply to all teas. Only in the West has the chemical concept of oxidation evolved. I havent done the research but I would guess oxidation became part of the vernacular when tea came to India.

Jim

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