6 Amazing Benefits of Fermented Tea

by John Staughton (BASc, BFA) last updated -

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There are hundreds of tea varieties available but fermented tea is a particular variant of standard tea that has a unique flavor, color, and history. It may also provide a number of health benefits, even some that traditional tea doesn’t offer. Before adding fermented tea to your daily or weekly health regimen, it is important to understand where it comes from, how it differs from normal tea, and what potential health effects it can have.

What is Fermented Tea?

Quite simply, fermented tea is a form of tea that has been exposed to microbes and allowed to ferment. Regular tea leaves are often referred to as “semi-fermented” because basic exposure to air begins certain oxidative processes. When yeast, bacteria or mold is added to the mix, full fermentation can occur. This fermenting process can take as little as one day, but some tea leaves are prepared under these conditions for years before they are used. Teas may undergo very brief periods of fermentation (Red teas in China), moderately long periods (blue-green tea) or very long fermentation time (post-fermented teas, e.g. Pu-erh).

The exposure to microbes, as well as moisture, allows the tea leaves to undergo an impressive transformative process of oxidation. This causes the leaves to darken, in addition to the release of certain microbes and metabolites that may benefit the overall health. The taste of fermented tea tends to be a bit milder and less bitter than other tea varieties, making this an extremely popular class of teas in certain countries.

It is believed that fermented tea originated in China, and was accidentally created for the first time. China and neighboring countries (e.g., Japan, Thailand, etc.) remain the primary consumers of fermented tea in the world. Also, the potential health benefits of this tea style have boosted its popularity around the globe. While kombucha is the most well-known fermented tea in most areas, there are quite a few different types of fermented tea, all of which can be a boost to your health.

Different varieties of kombucha made with oranges, grapefruit, ginger, and lime

Kombucha is a fermented tea that can be flavored with a variety of fruits and spices. Photo Credit: Shutterstock

Health Benefits of Fermented Tea

Some of the most important benefits of fermented tea include its ability to improve the immune system, support digestive health, boost energy levels, reduce inflammation and increase circulation, among others.

Boosted Immune System

The antibacterial and antibiotic properties of fermented tea are well known, despite the fact that it is created with the help of microbes. This can help balance the bacterial levels in your gut, which is where more than 50% of immune activity occurs in the body, helping to keep your system well protected.

Improved Digestion

Fermented tea is typically rich in probiotics, which is a very good news for your stomach and bacterial balance. Probiotics can stimulate the growth of beneficial bacteria in the stomach, and they are essential for speeding up the digestive process and properly absorbing nutrients.

High Energy Levels

As with most other types of tea, there is a small level of caffeine in fermented tea, which can provide an energy boost if you feel your energy or attitude lagging. There isn’t as much caffeine as you find in a cup of coffee, but the other benefits of fermented tea make up for the slightly weaker caffeine kick.

Increased Circulation

Studies have shown that fermented tea is able to improve circulation within the body by optimizing cardiovascular function and improving the uptake of iron by the body. Increased iron levels mean more red blood cells can be produced to deliver oxygen and other resources to cells around the body.

Reduced Inflammation

Due to the fermentation process, some of the antioxidants and anti-inflammatory compounds found in traditional tea are actually found in higher levels after fermentation. This can give your body a major boost against inflammation and chronic pain.

Heart Health

Research supports fermented tea’s ability to lower triglyceride levels in the body, which is important for those looking out for heart health. Triglycerides are associated with a breakdown of blood vessels and tissues, which increase your risk for heart attacks and strokes.

List of Famous Fermented Teas

In terms of fermented teas around the world, the most popular varieties come from China, Korea, Japan, Tibet, and Thailand.

  • China – Fu Zhuan cha, Pu-erh cha, Lu bian cha and Liu bao cha are four of the popular fermented teas in China and have been produced for hundreds of years.
  • Korea – Byeongcha is the primary form of fermented tea in Korea, and goes by other names, such as Tteokcha.
  • Japan – Toyama kurocha, Goishicha and Awabancha are all widely available in Japanese tea houses.
  • Thailand – Miang is the most popular type of “heicha”, or fermented tea in Thailand.
  • Tibet – Simply named, Tibeti has been produced and known in the regions around Tibet for centuries.
  • Burma – Lahpet is a type of pickled tea leaf that can be brewed into a tea and is often used in culinary preparations in the country.
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About the Author

John Staughton is a traveling writer, editor, publisher and photographer with English and Integrative Biology degrees from the University of Illinois in Champaign-Urbana (USA). He co-founded the literary journal, Sheriff Nottingham, and now serves as the Content Director for Stain’d Arts, a non-profit based in Denver, Colorado. On a perpetual journey towards the idea of home, he uses words to educate, inspire, uplift and evolve.

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