Green vs White vs Black Tea: What's Actually Different?

Green, white and black tea all come from the same plant, Camellia sinensis. What separates them is how the leaf is processed. Green tea is heated right after picking, so it doesn't oxidize: fresh, grassy, nutty. White tea is simply withered and dried, oxidizing slightly on its own: soft, honeyed, delicate. Black tea is rolled and fully oxidized: rich, malty, bready, chocolatey. In China, black tea is called red tea (hong cha) after the colour of its liquor. Caffeine overlaps across all three and depends more on the leaf and brewing than on the colour.

This is the question I'm asked most at my tea table, usually by a guest looking at three jars and wondering whether they're three different plants. I used to answer with a lecture. Now I just brew all three, one after the other, and let the cups do the talking. This article is that tasting, written down.

At a glance#

Why black tea is "red" in China#

This trips everyone up. In the West we name tea by the colour of the dry leaf, which is dark, so "black". In China, tea is named by the colour of the liquor, which is red, so "red tea" (hong cha). What Chinese tea drinkers call "black tea" (hei cha) is something else entirely: post-fermented dark teas like Liu Bao and Fu brick. On this site I say "red (black) tea" to keep both readers happy. More in my Chinese red (black) tea guide.

How each one is made#

Every tea is a question of what you do with oxidation, the natural browning that starts once a leaf is picked and damaged (the same thing that turns a cut apple brown).

Green tea: stop it immediately#

The fresh leaf is heated almost straight away, in China usually in a hot wok or drum. The heat "kills" the enzymes, so the leaf stays green. It's then shaped and dried. Nothing softens the bitter compounds, which is why green tea turns bitter so easily. See why green tea is bitter.

White tea: do almost nothing#

White tea is the least handled tea of all. The leaves are spread out to wither slowly, then dried. There's no heating step to stop oxidation and no rolling, so the leaf oxidizes slightly and gently on its own. The result is soft and sweet, with a delicacy that's easy to under-brew but hard to ruin.

Red (black) tea: let it run all the way#

The leaves are withered, then rolled hard to break the cells, then left to oxidize fully for a few hours until they turn copper, and finally dried. That full oxidation turns the fresh, grassy compounds into the malty, bready, chocolatey flavours of red tea.

Taste compared#

• Green tastes like spring: fresh grass, toasted beans, chestnut. It's bright and light.
• White tastes gentle: honey, melon, hay, meadow flowers. Bud teas are silky and subtle; leafy ones have more body.
• Red (black) tastes warm: malt, fresh bread, honey, cocoa, dried fruit. Chinese red teas are usually smoother and sweeter than the strong breakfast blends many people know.

Caffeine: which has the most?#

The honest answer is that it depends on the tea, not the colour. All three sit in overlapping ranges, roughly 12–43 mg per 100 ml. Buds carry more caffeine than mature leaves, so a bud-only white tea like Silver Needle can be stronger than a leafy red tea. "White tea has the least caffeine" and "black tea has several times more (or less) than green" are both myths. Details in caffeine in tea.

Brewing compared#

Full numbers for every type in my gongfu brewing chart.

Storage and shelf life#

• Green tea is the most fragile. Airtight, dark, cool and away from smells; drink within about a year.
• White tea is surprisingly robust. Stored dry and dark, it keeps well, and leafy white teas like Shou Mei can improve for years. See aged white tea.
• Red (black) tea is stable: in a tight, dark, cool container it stays good for up to about three years.

More in how to store tea.

My side-by-side: three teas, one table#

The flight I pour for curious guests. Spring Longjing, Bai Mu Dan and Dian Hong, each in its own 100 ml gaiwan at its own best temperature.

Nine times out of ten, guests are surprised that the red tea is the one with the most sweetness, and that the white tea has more flavour than its pale colour suggests.

Which one should you start with?#

• You drink black tea with breakfast: try a Chinese red tea like Dian Hong without milk. It's the smallest step.
• You want something fresh and green: a spring Longjing, brewed at 80 °C.
• You want something gentle and sweet: Bai Mu Dan, the best first white tea.

And once you've tried all three, oolong sits between them in a way of its own: see oolong vs green tea.

Myths#

"They come from different plants." Same species. Some cultivars suit one style better, but the category is decided by processing.

"White tea is just unripe green tea." No: it's made in a completely different way, with long withering instead of heating.

"White tea has no caffeine." It does, and bud teas can be strong.

"Black tea is stale green tea." No: red (black) tea is deliberately oxidized fresh leaf.

My honest take#

Don't pick a side before tasting all three properly made. Most people who "don't like green tea" have only had it scorched, and most who think white tea is "just hot water" have only had it weak. One good example of each, brewed right, will tell you more than any chart.

The bottom line#

Green, white and black tea are the same plant: green is heated fresh and tastes grassy and bright, white is only withered and dried and tastes soft and honeyed, and black (red in China) is fully oxidized and tastes malty and sweet. Caffeine overlaps; brewing and storage differ. Start with one of each, and explore the rest in my guide to the types of Chinese tea.