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Let You Better Understand Dark Tea

Tea News · May 01, 2026

       Dark Tea is a mature tea (commonly known as coarse tea), with higher nutritional content than green tea or black tea. Due to the low普及程度 of knowledge about dark tea, although it has a long history, most people's understanding of dark tea is basically based on their knowledge of green tea and black tea. However, different types of tea should not be judged by the same standard.

 

Misconception 1: Drinking dark tea affects sleep

It is common knowledge that drinking tea can make people excited and refreshed. This is because ordinary tea leaves contain relatively high levels of caffeine, which affects sleep. However, due to the production process of Fu tea, the caffeine gradually decreases during the long pile fermentation process, while theanine, which has a calming effect and protects brain nerve cells, is preserved.

Therefore, drinking Fu tea does not affect sleep; instead, it can improve sleep quality. Long-term consumption may even prevent insomnia and neurasthenia.

Misconception 2: Overnight dark tea cannot be drunk

Some people believe that overnight tea has "toxic gas" because the tea has gone sour. However, Fu tea contains antioxidant substances such as tea polyphenols, which limit the deterioration (oxidation process) of the tea broth, giving it a natural preservation effect. Moreover, after boiling Fu tea, the essence of the tea substances continues to ferment in the liquid.

Therefore, overnight Fu tea can not only be drunk, but its color becomes more transparent and red, and the taste becomes purer and sweeter.


Misconception 3: Tea is best when brewed

British scientists have found that tea boiled in a pot is more beneficial to health. Compared to simply brewing with boiling water, the method of boiling tea can release more cancer-fighting chemical substances.

Researchers at the Rowett Institute in Aberdeen found that when tea is boiled in a pot for 5 minutes, the concentration of antioxidants reaches its peak. Antioxidants can absorb harmful free radicals associated with cancer and heart disease.


Misconception 4: Coarse tea has no nutrition

Tea harvested from the tea plant is divided into two seasons. Tea picked around the Qingming Festival is called fine tea, while tea picked in summer and autumn is called coarse tea. "Coarse tea" contains abundant and full trace elements, vitamins, and polysaccharides.

Therefore, when using tea therapy to treat certain diseases, emphasis is placed on using "coarse tea." Modern medicine also supports this with a large amount of biochemical evidence: the content of substances in "coarse tea" is richer than that in fine tea. It should be emphasized that "coarse tea" does not refer to inferior tea, but to mature tea leaves as opposed to fine tea, also known as old tea. Dark tea is a typical mature tea, and the substances it provides are the richest among all tea types.


Misconception 5: Drinking dark tea is old-fashioned

To break people's traditional mindset about tea, many companies are continuously developing new dark tea products. These products have changed the traditional style of the tea industry in terms of packaging design and ease of use, featuring simple, bright, and fashionable packaging. At the same time, the sales model of dark tea is no longer limited to traditional tea markets or tea houses, but has expanded through online promotion, online stores, and TV shopping channels.

Misconception 6: Drinking dark tea harms the stomach or causes tea drunkenness

Drinking raw or semi-raw tea can irritate the stomach, while drinking dark tea can regulate the stomach. The main substance in tea that irritates the stomach is theophylline. The content of theophylline in fresh tea leaves is very high, so drinking fresh tea requires caution—it cannot be consumed on an empty stomach, as it may cause symptoms like cold sweats, dizziness (tea drunkenness). Dark tea is a fully fermented tea; its irritants, after a long period of fermentation and complexation with numerous beneficial microorganisms, no longer irritate the gastrointestinal tract.

The large number of digestive microorganisms in dark tea can promote gastrointestinal function and break down fatty foods, thus harmonizing the stomach and intestines.


Misconception 7: Dark tea is best drunk plain

Dark tea can accommodate almost any seasoning you like. Depending on preference, you can add milk, sugar, salt, butter, sesame, peanuts, etc. Foreigners like to add spices, coffee, cocoa, chocolate, honey, fruit, etc. If you try adding the same seasoning to other teas and dark tea, you will immediately understand the taste of dark tea and its infinite charm of inclusiveness.

Misconception 8: Pregnant women cannot drink dark tea

Pregnant women actually need to supplement more minerals and vitamins. They can drink it lightly during the brewing process. During pregnancy, when reactions are strong, replenishing water and minerals is best done with dark tea, and dark tea can also help harmonize the stomach and stop vomiting.

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