I. Introduction

If we were to compare strip-style Baozhong 包種茶 to a “young maiden” blossoming in youth, Dong Ding Oolong 凍頂烏龍茶 to a charming and elegant “noble lady,” and Tie Guan Yin 鐵觀音 to a calm and experienced “middle-aged man,” then Red Oolong 紅烏龍 could be described as a “chivalrous warrior” – gentle, righteous, highly skilled, and quietly powerful.

Many people may never have heard of it and do not really know what it represents. Questions such as “What exactly is Red Oolong?” or “Which tea category does it belong to?” often appear online. In reality, it is a relatively new Taiwanese specialty oolong developed by the Taitung branch of the Tea Research and Extension Station following earlier iconic Taiwanese styles such as strip-style Baozhong, Oriental Beauty 東方美人, and ball-rolled oolongs.

Its appearance consists of dark, glossy, tightly rolled spherical leaves. The infusion has a bright orange-red color, clear and luminous. The taste is sweet, smooth, and delicate. It is suitable both for hot brewing and cold brew preparation. This article introduces the origins of Red Oolong as well as its specific quality characteristics.


II. Historical Background and Origins

The history of Taiwanese tea dates back to the Dutch colonial period, when tea was traded through transit export. At the end of the Qing dynasty, settlers from the coastal regions of mainland China brought tea cultivars, cultivation methods, and tea-processing technologies to Taiwan. Since then, tea culture on the island has developed for several hundred years.

More than 140 years ago, the British merchant John Dodd began selling Taiwanese tea in New York under the name “Formosa Oolong Tea.” Only then did Taiwanese oolong step onto the international stage. Taiwanese tea producers continued to innovate and gradually created strip-style Baozhong, Oriental Beauty, and ball-rolled oolongs, which became symbols of Taiwanese tea. After the repeal of the Tea Factory Act in 1981, Taiwan’s tea industry gradually shifted from an export-oriented model to the domestic market. Tea farmers began promoting the concept of “grown, produced, and sold directly by the farmer,” and with government-supported marketing, ball-rolled oolongs became the dominant style on the Taiwanese tea market.

This led to the creation of famous regional specialties such as Dong Ding Oolong and the high mountain teas of Alishan 阿里山 and Lishan 梨山.

However, with rising production costs and limited tea-growing land, many Taiwanese producers moved production to Southeast Asia and mainland China. Along with them, Taiwanese cultivars, processing technologies, and investment capital also moved abroad. Ball-rolled “Taiwanese-style” teas successfully spread around the world – while simultaneously flooding the Taiwanese market itself. Because the same cultivars and techniques were used at significantly lower production costs, the greatest pressure was felt mainly in Taiwan’s lower and mid-elevation tea regions. Faced with this situation, it became clear that the only way forward was innovation, building regional identity, and creating new specialty teas.


III. The Birth of Red Oolong in the Taitung Tea Region

It is difficult to precisely evaluate how deeply the “Taiwanese tea style” impacted the global market. However, the development of the Fu Lu Tea 福鹿茶 region in Taitung County offers certain clues. Taitung belongs to the younger tea-producing regions of Taiwan. Small-scale tea planting only began here in the 1960s. Initially, black tea production dominated the region. Later, when Taiwanese tea exports encountered difficulties and the market shifted toward domestic consumption, Baozhong became the market mainstream, and local farmers switched to small-leaf cultivars intended for Baozhong production.

The period between 1980 and 1995 was a golden era for Taitung tea. At that time, the high mountain tea regions of central Taiwan were not yet fully developed, and Taitung attracted considerable attention thanks to its favorable climate. Late winter and early spring harvests from Taitung became highly valued by tea merchants and producers, who came to the region to process and trade tea. Tea plantation areas reached as much as 500–600 hectares.

After 1996, however, a period of decline began. The number of factories decreased from fifty or sixty to around ten, while plantation areas fell to approximately 200 hectares.

The reasons were several:

  1. Separation between cultivation and processing – farmers grew tea, but factories handled processing. Conflicts regarding quality, quantity, and sales methods often led factories to refuse purchasing harvested leaves, forcing farmers to switch to other crops.
  2. Lack of regional identity – teas from the region were not sufficiently differentiated from those of other areas, making market expansion difficult.
  3. Competition from imported “Taiwanese-style” teas.


Fu Lu Tea is the largest and most important tea-growing area in the Hualien–Taitung region. In order to survive, it was necessary to find a new direction. The Tea Research and Extension Station in Taitung therefore launched an extensive transformation program for the tea industry – moving from a “production-oriented” model toward a “knowledge-oriented” tea economy.

The strategy focused on three areas:

  • special tea cultivars and processing technologies,
  • quality certification,
  • brand building and marketing.

Eastern Taiwan has already become the largest cultivation area for the Da Ye Oolong 大葉烏龍 cultivar, while the selection of the wild mountain tea Yongkangshan 永康山野生茶 is also underway and may become another regional specialty. In processing, new tea styles such as Honey Fragrance Black Tea 蜜香紅茶, Honey Fragrance Green Tea 蜜香綠茶, and Red Oolong 紅烏龍 were gradually introduced. Honey Fragrance Black Tea, for example, has already become the iconic tea of the Wuhe 舞鶴 area in Hualien County. Visitors now travel there specifically for this tea style, and the area is gradually becoming known as the “home of honey-fragrance black tea.”

Red Oolong was created by the team of the Tea Research and Extension Station in Taitung with the goal of helping lower-elevation tea regions overcome economic difficulties. It utilizes more heavily oxidized summer and autumn oolong harvests. The infusion has an orange-red color reminiscent of black tea, which is exactly why it was named “Red Oolong.” Since its introduction in 2008 in the Luye 鹿野 area of Taitung, it has gradually attracted increasing attention and popularity. The market continues to grow, and the tea has even gained attention in mainland China. There is a strong possibility that it will become one of Taiwan’s new iconic specialty teas.


IV. The Processing Characteristics of Red Oolong

Traditional oolong production includes essential steps such as:

  • withering,
  • leaf tossing and bruising,
  • fixation,
  • rolling,
  • drying.

Any tea utilizing these processes may be described as “oolong in the broader sense.” This includes Wen Shan Baozhong 文山包種, Tie Guan Yin, Oriental Beauty, Dong Ding Oolong, and high mountain oolongs. The differences between them mainly lie in the degree of oxidation. Within the Chinese classification system of six major tea categories, they belong to the Qing Cha 青茶 category.

For traditional oolongs, the quality of fresh tea leaves is crucial and highly sensitive to seasonality, cultivar, or pest damage. Red Oolong, however, is far more flexible in this regard. Its production is less dependent on season or perfect leaf appearance. Thanks to this, the tea can be produced safely and organically even without pesticides. It is highly suitable for ecological and organic cultivation. The greatest difference from classical oolongs lies in the oxidation stage. It is precisely here that Red Oolong represents a revolutionary change. Red Oolong combines processing elements of both oolong and black tea, creating a new style with the highest oxidation level among oolongs. It is suitable for production across all Taiwanese tea regions and makes excellent use of abundant summer and autumn harvests, thereby increasing farmers’ income. Another advantage is the possibility of mechanical harvesting and use in iced teas or bottled beverages. The potential of this tea style is therefore extremely high.

Some people claim that Red Oolong is simply the traditional Hong Shui Oolong 紅水烏龍 under a new name. However, the author emphasizes that they are completely different teas – technologically, visually, aromatically, and in taste.

Differences Between Hong Shui Oolong and Red Oolong

Hong Shui Oolong Red Oolong
Green leaves with red edges Amber-colored leaves
Lighter oxidation Heavier oxidation
Orange-yellow or amber infusion Orange-red to deep red infusion, bright and glossy
Sweet and smooth taste, mainly suitable for hot drinking Ripe fruit aroma, sweet, delicate, and smooth taste, suitable both hot and cold
Twisted orange-yellow appearance Ball-rolled, tightly twisted, dark and glossy appearance



V. Character and Quality of Red Oolong

The well-known tea expert Hong Fei-Teng 洪飛騰 described Red Oolong with the following words:

Red liquor with the aroma of fresh fruit,
sweet and full flavor lingering long on the palate,
hand-picked one bud and two leaves,
cold brew refreshes deep into the heart.

The main characteristics of Red Oolong:

  1. The appearance consists of dark red, ball-rolled leaves with a glossy finish.
  2. The infusion has an amber orange-red color, bright and clear like black tea, while the taste remains distinctly oolong.
  3. The tea has a full body, ripe fruit aroma, smooth and rich taste, remarkable liveliness, and excellent endurance across multiple infusions. It is outstanding for cold brew and has great potential for bubble tea and tea beverages.
  4. It is a heavily oxidized and more roasted oolong. The emphasis is placed on sweetness and fullness of the liquor. It may carry a light roasted aroma, but must not develop over-roasted or burnt notes. Thanks to its stability, it is also suitable for long-term aging.
  5. Production is not strongly limited by season, cultivar, or pests. The tea can be safely produced without pesticides, making it suitable for ecological cultivation.
  6. Red Oolong is a newly created tea style combining the processing technology of oolong and black tea. Its oxidation level is likely the highest among all oolongs.
  7. The production of Red Oolong represents a revolutionary change in oolong technology. The process is simpler, does not require overnight tea making, and places emphasis mainly on withering and leaf tossing.

VI. Conclusion

Taiwan is often referred to as the “Kingdom of Oolong.” Oolong is not only a symbol of Taiwanese tea – Taiwan has brought its production almost to perfection and created new directions and technologies, especially the style of ball-rolled oolong. At the same time, however, Taiwan has spread these technologies to Vietnam, mainland China, Thailand, Indonesia, and other countries. This brings both pride and concern. Pride because Taiwanese tea know-how has reached a world-class level and spread across the globe. Concern because this situation has also significantly impacted Taiwan’s own tea industry. The author believes that the future of Taiwanese tea lies in diversity, regional identity, and an emphasis on safe, organic teas free from pesticide residues.

Honey Fragrance Tea 蜜香茶 and Red Oolong 紅烏龍 represent the ideal direction for future development.