The main types of tea all come from one plant, Camellia sinensis, and ISO 20715:2023 lists six: white, green, yellow, oolong, black and dark. A kettle clicks off beside four tins on a shelf. Those tins are not four plants. The difference is processing, mostly how far the leaf is allowed to oxidise before heat, drying or later fermentation changes the path.
茶者，南方之嘉木也。一尺、二尺乃至數十尺。
Chá zhě, nán fāng zhī jiā mù yě. Yī chǐ, èr chǐ nǎi zhì shù shí chǐ.
“Tea is a fine tree of the south. It grows from one or two feet to several tens of feet tall.”
Lu Yu opened chapter 1 with one tree. That is the useful starting point for a buyer looking at white, green, oolong and black tins.
One plant, two main varieties
Camellia sinensis has two principal varieties: the small-leaved Chinese variety, var. sinensis, and the large-leaved Assamese variety, var. assamica. Var. assamica is used mainly for black tea. White, yellow, green, oolong, dark and black tea all come from Camellia sinensis, so the question “do all teas come from the same plant” has a clean answer for true tea: yes.
Five steps, and where each type of tea turns off
The five basic steps are withering, kill-green or fixation, rolling, oxidation and drying. Withering can remove more than a quarter of the leaf’s water weight; kill-green uses panning or steaming to stop oxidation; rolling changes the leaf; oxidation changes the path; drying finishes the tea. The table keeps to those processing facts and uses plain cup language for taste.
| Tea | Withering | Kill-green / heat | Rolling | Oxidation | What it tends to taste like |
|---|---|---|---|---|---|
| White | Withering is part of the process; leaves can lose more than a quarter of their water weight. | No fixation. | Not rolled. | Not stopped by kill-green. | Soft, light. |
| Green | Yes | Heat stops oxidation early. | Yes | Halted early. | Grassy, fresh. |
| Yellow | Yes | Kill-green comes before the closed-container step. | Yes | After kill-green, warm damp leaves are lightly heated in a closed container. | Varies by maker. |
| Oolong | Yes | Heat stops the process after partial oxidation. | Yes | Partly oxidised; light oolongs are 5–40% oxidised. | Anywhere from floral to toasty. |
| Black | Yes | Not before full oxidation. | Yes | Fully oxidised. | Malty, brisk. |
| Dark | Yes | Fixation comes before the later change. | Yes | Second oxidation or fermentation after fixation. | Varies by maker. |
White, green, oolong and black: what each tastes like and when to drink it
Start with green tea if you want the clearest contrast with black tea. Brew it in a mug at 80°C for 2–3 minutes. In the morning, next to a small bowl of rice or a plain piece of toast, green tea reads grassy and fresh. It finishes dry enough to reset the mouth.
The white vs green tea difference is mostly in the early handling. White tea is not rolled and has no fixation. Green tea has oxidation halted early by heat. In the cup, keep the words simple: white is soft and light; green is grassy and fresh. If you want sharp leaf flavor at 80°C, choose green. If you want a quieter cup beside fruit at mid-morning, choose white.
Oolong is the broad middle. For a mug, use 90°C water and 3–5 minutes. Drink it after lunch, especially when the plate still has oil or sauce on it. The cup can move from floral to toasty because oolong is partly oxidised; light oolongs are 5–40% oxidised. For tea oxidation levels explained with colour in mind, use our article Does Darker Tea Mean Stronger Tea?.
Black tea is the direct answer when someone asks for the difference between green and black tea. Green is stopped early by heat. Black is fully oxidised. Brew black tea at 95°C for 3–5 minutes on a cold afternoon, with a plate of cake or a slice of bread on the counter. The cup tends to be malty and brisk, with a firmer edge than green.
If you only want one tin first, pick by time of day. Green at 80°C suits morning. Oolong at 90°C suits after lunch. Black at 95°C suits a colder afternoon. White sits well when you want a soft, light cup and do not need the grassy snap of green.
The two types of tea most guides skip: yellow and dark tea
Yellow tea is part of the six types in ISO 20715:2023. In processing, after kill-green, the warm damp leaves are lightly heated in a closed container. That closed-container step is the only detail to hold on to here.
Dark tea is also one of the six ISO types. It undergoes a second oxidation or fermentation after fixation. Keep that separate from black tea, which is fully oxidised rather than defined by a second change after fixation.
Three types from one estate
Blossom Ritual is a Vietnamese specialty tea brand founded in Hanoi in December 2025, sourcing from its family's tea estates in Moc Chau (Son La) and Tam Duong (Lai Chau) — a 600-hectare estate at 1,200–1,500 m altitude.
For a green example, Jasmine Bloom Green Tea is Shan Tuyet green tea scented with fresh jasmine. For oolong, Himalaya Floral Oolong Tea is Moc Chau oolong scented with osmanthus, creamy and honeyed. For black tea, Dreamy Rose Black Tea is malty black tea with rose petals from Ha Giang.
Frequently asked questions
Do all teas come from the same plant?
Yes. White, yellow, green, oolong, dark and black tea are all made from the leaves of Camellia sinensis. The main types of tea differ by processing, not by being six unrelated plants.
What is the difference between green and black tea?
Green tea has oxidation halted early by heat, through kill-green or fixation. Black tea is fully oxidised. In the cup, green tends to taste grassy and fresh, while black tends to taste malty and brisk.
What is oolong tea?
Oolong tea is partly oxidised tea made from Camellia sinensis. Light oolongs are 5–40% oxidised, and the taste can range from floral to toasty.
What is yellow tea?
Yellow tea is one of the six ISO 20715:2023 tea types. After kill-green, the warm damp leaves are lightly heated in a closed container.
0 comments