What is Oolong Tea?
Oolong tea is a partially oxidised variety that sits somewhere between green and black tea. Also known as “Wulong,” oolong tea means “black dragon” in Chinese. This name comes from the dark and curled appearance of the tea leaves. Depending on the level of oxidation, oolong tea can be light (close to green tea) or dark (close to black tea), which determines the tea's characteristic features.
Oolong tea is primarily produced in China and Taiwan, with both regions having developed their own unique varieties of oolong. Chinese oolongs are generally lighter and more floral, while Taiwanese oolongs have a creamier and fruitier profile. This type of tea holds a special place among tea enthusiasts due to its complex aroma and rich flavour.
The History of Oolong Tea
The origin of oolong tea dates back to the 16th century in Fujian province, China. According to legend, a tea producer was disturbed by a deer after picking the tea leaves and forgot to process the leaves. The next day, he noticed that the leaves had partially oxidised and discovered this new type of tea. This story recounts the accidental discovery of oolong tea.
Oolong tea gained popularity during the Qing Dynasty (1644-1912). During this period, Chinese emperors particularly enjoyed oolong tea, and this type of tea held a special place in the palace. In the 19th century, oolong tea was brought to Taiwan, where it developed its own characteristic features. Today, both China and Taiwan produce some of the world's finest oolong teas.
The Production Process of Oolong Tea
The production of Oolong tea is a combination of green and black tea production. The first stage is the harvesting of tea leaves. For Oolong, more mature leaves are generally preferred. The harvested leaves undergo a withering process. At this stage, the moisture content of the leaves is reduced and they gain flexibility.
After the withering process, the leaves are crushed or rolled. This process breaks the cell walls, allowing enzymes to be released. Then, a controlled oxidation process begins. The uniqueness of Oolong tea comes from the control of this oxidation process. When the producer reaches the desired level of oxidation, they stop the oxidation by roasting the leaves at a high temperature.
The oxidation level determines the character of oolong tea. Lightly oxidised oolongs (10-30%) have a profile close to green tea and possess a floral, fresh aroma. Medium oxidised oolongs (30-50%) have a balanced profile. Darkly oxidised oolongs (50-70%) have a profile close to black tea and possess a roasted, earthy aroma.
Health Benefits of Oolong Tea
Oolong tea combines the health benefits of both green and black tea. Thanks to its high polyphenol content, it possesses strong antioxidant properties. These antioxidants fight free radicals in the body and prevent cell damage.
Regular consumption of oolong tea may assist with weight management. Research shows that oolong tea accelerates metabolism and increases fat burning. Additionally, it is known that oolong tea reduces feelings of hunger and boosts energy levels.
Oolong tea also supports heart health. Regular consumption lowers bad cholesterol (LDL) levels and increases good cholesterol (HDL) levels. Additionally, it is known that oolong tea regulates blood pressure and reduces the risk of heart attack.
Oolong tea can also improve dental health. Thanks to its fluoride content, it prevents tooth decay and strengthens tooth enamel. Additionally, it is known that oolong tea reduces bad breath.
Oolong Tea Varieties
Oolong tea is divided into many different varieties depending on the region it is produced and the level of oxidation. Each variety offers its own unique aroma and flavour profile.
Ti Kuan Yin (Iron Goddess of Mercy):It is the most famous oolong variety from China. It is lightly oxidised and has a floral and sweet aroma. Different notes emerge with each brew.
Da Hong Pao (Big Red Robe):It is a premium oolong variety from China’s Wuyi Mountains. It has a dark oxidised, roasted flavour with earthy notes. It is very valuable and rarely found.
Dong Ding:It is the most popular oolong variety from Taiwan. It has a medium oxidation level and a creamy, fruity aroma. It is ideal for daily consumption.
Ali Shan:It is a type of oolong tea that comes from the high mountains of Taiwan. It is lightly oxidised and has a fresh, floral aroma. It is a premium variety.
Milk Oolong:It is a variety of oolong tea that naturally has a creamy, milky aroma. This aroma comes from the soil and climatic conditions in which the tea is grown.
How to Brew Oolong Tea?
For a perfect cup of oolong tea, the right temperature and brewing time are very important. Oolong tea should be brewed at different temperatures according to its oxidation level. For lightly oxidised oolongs, 80-85°C is ideal, for moderately oxidised oolongs, 85-90°C, and for darkly oxidised oolongs, 90-95°C.
Brewing time varies depending on the type of tea. Generally, 3-5 minutes is sufficient. Oolong tea can also be brewed using the multiple infusion (gongfu cha) method. In this method, a small amount of tea is used and brewed multiple times for short durations (30 seconds – 2 minutes). Different flavours emerge with each infusion.
Oolong tea is usually consumed on its own. Due to its complex aroma and rich flavour, it does not require any additional sweeteners. However, if desired, a light sweetener can be added. A quality oolong tea already has its own unique taste and does not need any extra ingredients.
Result
Oolong tea is a type of tea that occupies a unique position between green and black tea, cherished by tea lovers for its complex aroma and rich flavour. With the right brewing technique and quality tea selection, you can discover the unique taste and benefits of oolong tea. By incorporating oolong tea into your daily routine, you can support your health while enjoying a delightful tea experience.