Chinese tea can be categorized into six main types based on the processing method and degree of oxidation or fermentation:
⚪ White (Bai Cha, 白茶)
White tea is made from the youngest, half-opened leaves of the first harvest, covered with short white hairs on the buds (called bai hao, or “white tips” — trichomes). It has the simplest processing method among all tea types: the leaves are harvested, naturally withered, and sun-dried. Oxidation in white tea is minimal.
🟢 Green (Lü Cha, 绿茶)
After harvesting, the leaves are slightly withered in the open air. Oxidation is halted by roasting the leaves in heated woks or over an open flame. The leaves are then dried and, depending on the variety, rolled or twisted into various shapes. Oxidation levels are extremely low, around 1–2%.
🟡 Yellow (Huang Cha, 黄茶)
Yellow tea is one of the rarest tea types. The leaves are heated over charcoal, then wrapped in parchment, where a slow oxidation process called menhuang (“sealing yellow”) occurs, giving the tea its yellowish hue. This process can take up to 72 hours.
🟣 Oolong (乌龙)
With a medium oxidation level ranging from 40% to 60%, oolong tea is often made from mature leaves of older tea bushes. After harvesting, the leaves are withered in the sun for 30–60 minutes, then placed in bamboo baskets and left in the shade. The leaves are periodically shaken and gently bruised to oxidize the edges while keeping the central veins green. Oxidation is halted through roasting in hot air, followed by rolling and final drying. The entire process takes 2–3 days.
🔴 Red (Hong Cha, 红茶)
Known as “red tea” in China due to its infusion color, but historically referred to as “black tea” internationally, this tea involves the following steps: harvesting → withering → rolling to release tea juices → shaping. For certain varieties, such as Zheng Shan Xiao Zhong, the leaves are heated over wood before rolling. Oxidation occurs in covered boxes to enhance flavor development, after which the tea is dried and sorted.
⚫ Black (Hei Cha, 黑茶)
Classified as “black tea” in China but referred to elsewhere as “dark” or “post-fermented” tea, this type uses mature, robust leaves, including coarse leaves and stems.
The process involves:
Harvesting → sun-wilting → pan-frying on a dry wok (sha qing, or “kill-green”) → rolling to release juices → piling the leaves into small heaps and covering them with cloth for microbial fermentation over several days.
The tea is then placed in baskets and warmed over charcoal to halt fermentation. It is later pressed into bricks and dried.
The term “post-fermented” highlights the defining feature of this tea: secondary fermentation. Black tea continues to mature and develop its flavor over time, provided it is stored properly. It is considered “alive,” gaining depth and complexity with age.
Black tea originated in the late 1300s during the Ming dynasty and is still produced today in various provinces, especially near China’s western borders, where it is also known as “border tea.” The most famous example is Shu Pu’er, though it is the youngest, having emerged in the 1970s.
☝️ Beyond Six Types
While there are six main types of tea, each category contains subtypes defined by factors such as region, cultivar, and processing methods. For instance, the majestic…
🐉 Pu’er (普洱)
Pu’er is a category of post-fermented tea characterized by the use of large-leaf tea tree varieties from Yunnan province and a unique processing method:
Harvest → kill-green (sha qing, at moderate temperatures) → rolling → sun-drying
This process produces raw material known as mao cha, which can be pressed into “raw” Sheng Pu’er cakes. Alternatively, it can undergo an additional wet-piling (wo dui, 渥堆) step: the leaves are piled in covered areas and moistened to promote microbial activity and controlled fermentation, lasting up to three months. Afterward, the tea is pressed into cakes and becomes known as Shu Pu’er.
Thanks to gentle thermal processing and the rich composition of large-leaf tea trees, Pu’er creates a unique environment for microorganisms, making it one of the most dynamic and evolving post-fermented teas. This is particularly evident in Sheng Pu’er, where aging continues for decades, revealing new layers of flavor and aroma over time.