All tea—every type, every style, every country of origin—comes from one plant: Camellia sinensis. What makes green tea green, black tea black, and oolong something in between isn’t the plant or where it’s grown. It’s what happens to the leaf after it’s picked. The six Chinese tea types—green, white, yellow, oolong, black, and Pu’er—are defined almost entirely by their processing, and understanding that one fact makes the whole category map click into place.
Green Tea (绿茶, lü chá)
Green tea is defined by one step: fixing (shā qīng, 杀青, literally “kill-green”)—applying heat to the freshly picked leaf to deactivate the enzymes responsible for oxidation. Do this early enough and the leaf stays green, the fresh character is preserved, and you get what most people picture when they think of Chinese tea.
How the leaf is fixed matters enormously. Chinese green teas are almost always pan-fired—tumbled in a hot wok or drum—which produces a toasted, nutty character. Japanese green teas are steamed, which preserves more of the vegetal, grassy notes. Same plant, same step, different method, completely different cup. Dragon Well is the classic pan-fired Chinese green: flat leaves, chestnut sweetness, a little roast.
Green teas are the most time-sensitive in the collection. Keep them sealed, cool, and away from light.
White Tea (白茶, bái chá)
White tea production involves withering—laying freshly picked leaves out to rest for one to several days—then drying. No fixing, no rolling, no deliberate oxidation step. But during the long wither, a small amount of natural oxidation occurs as cell walls relax. It’s minimal but real, and it produces the honey and hay notes that characterize the category. White tea isn’t truly unoxidized; it’s just unintentionally, gently oxidized.
A common misconception: white tea isn’t always made from buds only. Silver Needle (Bai Hao Yin Zhen) is—one unopened bud per pick, covered in white pekoe fuzz, the top grade. White Peony (Bai Mu Dan) uses one bud with one or two young leaves attached, which gives it more substance and makes it a better everyday tea. Jasmine Silver Needle uses the Silver Needle base, then scents it with fresh jasmine blossoms using the same process as Jasmine Green.
White tea is also unusual in that it ages well. Because the oxidative enzymes were never deactivated, slow transformation continues over years—honey deepens, fresh hay becomes dried fruit. Aged white tea is a distinct and serious subgenre.
Yellow Tea (黄茶, huáng chá)
Yellow tea begins exactly like green tea—fixed with heat—then takes one extra step that defines the category: men huang (閁黄, “sealing the yellow”). The warm, just-fixed leaves are wrapped in cloth or paper and left in small bundles. Residual heat and moisture slowly break down chlorophylls, mellow the vegetal edge, and allow minimal oxidation to develop. The result is the freshness of green tea with a softer, rounder character—less grassy, more honeyed.
The category nearly vanished in the 20th century. The men huang step is labor-intensive, the knowledge was disrupted, and many producers found it easier to sell the leaves as green tea without the extra work. This still happens: some yellow teas on the market skipped the defining step entirely. Our Imperial Yellow is a genuine one.
Oolong Tea (乌龙茶, wūlóng chá)
Oolong is the widest category. Semi-oxidized means anywhere from roughly 10% to 85% oxidized, which is why Jade Oolong and Da Hong Pao can both be oolong while tasting nothing alike. One brews pale and floral; the other brews dark mahogany with roasted mineral depth.
The defining production step in traditional oolong is yao qing (摇青, “rocking the green”)—shaking or tumbling the leaves to bruise just the edges. Oxidation begins at the leaf margins while the center stays green. The producer watches, then fixes the leaves with heat to stop oxidation at the desired point. A lightly oxidized oolong leaf shows this clearly: brown edges around a still-green center.
Rock oolongs like Da Hong Pao push oxidation much further, then add charcoal roasting—a step that builds depth no amount of oxidation alone can produce. The mineral quality of the Wuyi Mountain terroir, yan yun (岩韵, rock rhyme), defines these teas. Same category as Jade Oolong in classification; a completely different drink.
Black Tea (红茶, hóng chá)
A naming note: what the rest of the world calls black tea, the Chinese call hong cha—red tea—because the brewed liquor is reddish-amber. The Chinese already have a hei cha (黑茶, dark tea) category, which refers to fermented teas including Pu’er. The two terms have caused persistent confusion in both directions for anyone reading about tea in translation.
Black tea is fully oxidized. After picking and withering, the leaves are rolled to break down cell walls and release the enzymes that drive oxidation. The leaves are then left to oxidize as completely as possible before drying. Catechins convert to theaflavins and thearubigins—the compounds that produce the amber-red liquor and brisk character. The result is the most stable type in the collection: already heavily oxidized, it stores well and doesn’t deteriorate quickly.
Chinese black teas are almost always congou-style (gongfu hong cha, 工夫红茶)—whole-leaf, carefully processed, with distinct regional characters. Keemun from Anhui, Yunnan Black (Dian Hong) from Yunnan, Wuyuan Black from Jiangxi: same method, different cultivars, different terroir, different cups.
Pu’er Tea (普洱茶, pǔ’ěr chá)
Pu’er is the outlier. Every other tea type is defined by enzymatic oxidation—the browning reaction driven by enzymes within the leaf, the same process that turns a cut apple brown. Pu’er is defined by microbial fermentation: bacteria, fungi, and other microorganisms acting on the leaf over time. It’s a fundamentally different chemical process, which is why Pu’er sits in its own category—hei cha (dark tea)—in Chinese classification.
Raw Pu’er (sheng, 生) starts as a compressed cake and transforms slowly over years through natural microbial activity. It can age for decades and is traded with vintage values. Ripe Pu’er (shou, 熟) was developed in the 1970s as an accelerated alternative: a controlled wet-piling fermentation that achieves in months what aging achieves over years. The two taste nothing alike. Our Shou Pu’er is the ripe style—earthy, smooth, dark, and considerably more approachable as an entry point than young raw.
One Line for Each
Green: Fixed early; pan-fired Chinese styles are toasted and nutty, steamed Japanese styles are vegetal.
White: Withered and dried; minimal natural oxidation produces honey, hay, and subtle fruit.
Yellow: Green processing plus men huang wrapping; mellower and rounder than green, rarely made correctly anymore.
Oolong: Semi-oxidized via edge-bruising; the widest category, from nearly green to nearly black.
Black: Fully oxidized; brisk and stable, with distinct regional character in whole-leaf Chinese versions.
Pu’er: Microbially fermented rather than oxidized; earthy and smooth, ages like wine.
The processing framework in this post draws heavily on the work of Tony Gebely, whose classification system is the clearest thinking on this subject we’ve come across. His blog at Tea Epicure and his book Tea: A User’s Guide are worth your time if you want to go further. We recommend both without reservation.
