Aged Tied Guan Yin Tea is made by roasting, cooling, and then sealed for storage in special cellars to promote post-ripening. It comes in several categories: five years, ten years, fifteen years, eighteen years, and twenty-eight years, with the best quality being between ten and twenty-eight years. The dried tea has a dull color, while the infusion is deep yellow, brown, or reddish-brown. Its taste is mild and slightly sweet with a lingering aftertaste. In addition to the general functions of tea, it also has effects such as lowering blood pressure, reducing cholesterol, and aiding digestion.

Aged Tied Guan Yin is a Fujian Anxi Oolong tea that has been aged for many years and repeatedly refined through roasting. It maintains the traditional process of making Tied Guan Yin, offering a pleasant mouthfeel with a light yellow infusion. Its aroma is characterized by a smoky flavor and a strong aftertaste, and long-aged Tied Guan Yin has certain Health benefits and therapeutic effects on the body.

When we were young, if someone had stomach bloating or diarrhea, adults would Brew a pot of steaming, dark tea for us to drink while it was hot. At the time, we didn't understand or enjoy it, but after drinking it, our stomachs did feel much better.

Aged Tied Guan Yin over 20 years old is said to have high medicinal value. Because it has been stored for many years, it is effective at reducing internal heat and stopping dysentery, warming the stomach and replenishing qi, making it a cherished health tonic passed down through generations and becoming a treasured folk remedy.

Does aged Tied Guan Yin really possess the charm of a miraculous medicine?

Those who have studied the biochemistry of tea know that during roasting and aging, catechins decompose and polymerize, enriching the tea with gallic acid and tea pigments. This not only gives the tea a mature flavor but also endows it with unique benefits.

Research from top universities in Japan and South Korea shows that gallic acid can effectively alleviate inflammation and allergic reactions, inhibit the growth of pathogenic bacteria such as E. coli and Helicobacter pylori, and cause lung cancer and prostate cancer cells to wither, thereby providing potent anti-tumor effects.

Compared to new tea, older teas have had their polyphenols, aldehydes, and alcohols oxidized and transformed, making them more suitable for consumption by a broad range of people. They offer effects such as clearing heat and reducing fire, cooling and dispelling summer heat, warming the stomach and strengthening the spleen, eliminating food stagnation, activating blood and reducing fat.

The health benefits of Anxi Tied Guan Yin include preventing tumors and fighting cancer.

Recently, a press conference on the health benefits of Anxi Tied Guan Yin was held in Anxi. Professor Lin Jinkē from the Anxi Tea College of Fujian Agriculture and Forestry University and Professor Liu Zhonghua, chief scientist of the research team studying the health benefits of Anxi Tied Guan Yin, presented their findings.

The study results show that:

1. Different varieties of Anxi Tied Guan Yin help prevent hyperlipidemia.

2. Different varieties of Anxi Tied Guan Yin help prevent hyperglycemia and reduce insulin resistance index.

3. Different varieties of Anxi Tied Guan Yin have a role in preventing liver tumors.

According to the project research:

1. Anxi Tied Guan Yin has a significant effect in lowering lipids and protecting the liver. Among the different styles, the richly fragrant type is better than the fresh fragrant type in lowering total cholesterol (TC), total triglycerides (TG), and low-density lipoprotein cholesterol (LDL-C). Of the aged fragrant types, those around 16 years old are better at lowering lipid levels.

2. Aged fragrant Anxi Tied Guan Yin has a significant effect in lowering Uric acid. For regions where people consume a lot of seafood or for those who heavily consume seafood and beer, regularly drinking aged fragrant Tied Guan Yin can effectively lower blood uric acid levels, preventing or alleviating gout.

3. Anxi Tied Guan Yin adjusts the gut by protecting beneficial bacteria (lactobacilli) and inhibiting harmful gut bacteria (enterococci). Aged fragrant Tied Guan Yin with longer aging periods (aged Tied Guan Yin) has a significant effect in moistening the intestines and relieving constipation.

4. Anxi Tied Guan Yin has a significant anti-inflammatory and heat-clearing effect. All types of Anxi Tied Guan Yin have a certain anti-inflammatory and heat-clearing effect, with the richly fragrant type being better than the fresh fragrant type. Aged fragrant Tied Guan Yin stored for around 20 years has a clear anti-inflammatory and heat-clearing effect.

5. Anxi Tied Guan Yin has a significant anti-aging effect. The fresh fragrant type performs better than the richly fragrant and aged fragrant types.

Professor Liu explained that the claim that fresh fragrant Tied Guan Yin harms the stomach is one-sided and unscientific; the fresh fragrant type also has certain health benefits. Professor Liu recommends not drinking concentrated fresh fragrant Tied Guan Yin on an empty stomach, and that it is best to drink three cups of Tied Guan Yin daily.

The research also found that in terms of adjusting the gut, the longer the aged fragrant Anxi Tied Guan Yin, the better the effect, with 31-year-old aged fragrant Anxi Tied Guan Yin having the strongest anti-diarrheal effect. Professor Liu Zhonghua stated that although Anxi Tied Guan Yin has good health effects in some areas, it should not be used as a substitute for medication.

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