Types of Tea, Explained: A Simple Guide to the Tea Family

There are six types of true tea, and all of them come from the same plant, Camellia sinensis: white, green, yellow, oolong, black and dark tea (pu-erh). The only difference between them is how the leaves are processed after picking, especially how much they are allowed to oxidize. Everything else we call "tea," such as chamomile or rooibos, is a herbal tisane made from other plants.

That processing changes everything: the colour, the flavour, the caffeine and the antioxidants. Green tea stays rich in catechins such as EGCG; black tea converts them into theaflavins; oolong develops its own family of compounds in between. [1] [2] Same plant, six very different cups.

The Key Idea: Oxidation

Oxidation is what happens when a picked tea leaf is exposed to air, the same reaction that turns a cut apple brown. Enzymes inside the leaf convert its green catechins into darker, richer compounds.

•             Stop oxidation early (by heating the leaf) and you get green tea.

•             Let it run partway and you get oolong.

•             Let it run fully and you get black tea.

Every type of tea sits somewhere on that line.

The Six Types of True Tea

Type	Oxidation	Flavour	Caffeine	Richest in
White	Minimal	Delicate, honeyed	Low	Catechins, minimally processed
Green	None (heat stops it)	Fresh, grassy, sweet	Low to medium	Catechins, especially EGCG
Yellow	Very light	Mellow, smooth	Low to medium	Catechins, softened
Oolong	Partial (10 to 80%)	Floral to roasted	Medium	Polymerized polyphenols
Black	Full	Bold, malty, brisk	Medium to high	Theaflavins, thearubigins
Dark / Pu-erh	Full, then aged	Earthy, deep	Medium	Unique aged compounds

Exact caffeine per cup for each type in Caffeine in Tea Explained.

1. White Tea

The least processed tea of all. Young buds and leaves are simply withered and dried. The result is pale, delicate and naturally sweet, with notes of honey and melon. Brew it gently, around 80°C.

2. Green Tea

Heated soon after picking to stop oxidation, by steaming (Japanese style) or pan-firing (Chinese style). This locks in its green colour, fresh flavour and high levels of catechins, especially EGCG, the most studied compound in tea. [2] Green tea also delivers L-theanine for calm focus. [3] See Green Tea to Relax.

Matcha is a special green tea: shade-grown for weeks before harvest, which boosts its L-theanine, then stone-ground into powder. Because you drink the whole leaf, it delivers more of everything. Try our ceremonial grade Green Zen.

3. Yellow Tea

A rare tea made like green tea, with one extra step: the warm, damp leaves are wrapped and rested, which gently yellows them and softens any grassy edge. Smooth, mellow and hard to find.

4. Oolong Tea

Partly oxidized, then rolled or twisted, oolong sits between green and black. Light oolongs are floral and creamy; darker ones are roasted and nutty. Partial oxidation creates polymerized polyphenols unique to oolong, and oolong has been studied for metabolism. [4] Its rolled leaves re-steep beautifully. Try our Ti Kuan Yin blend, Lean Bloom.

5. Black Tea

Fully oxidized, black tea is the boldest, darkest and most familiar tea in the West. Oxidation converts catechins into theaflavins and thearubigins, the antioxidants behind its coppery colour and brisk taste. [1] Three cups of black tea a day lowered blood pressure in a randomized trial. [5] Try our whole-leaf Ceylon Velvet Earl Grey.

6. Dark Tea and Pu-erh

Fermented and aged, sometimes for years. Pu-erh from Yunnan, China, is the best known. Microbes transform the leaf, creating a deep, earthy, smooth cup that, like wine, can improve with age. Rinse the leaves briefly before brewing.

What About Herbal Tea?

Herbal teas, or tisanes, are made from any plant other than Camellia sinensis. Chamomile, rooibos, peppermint, hibiscus, lavender and valerian are all tisanes. Most are naturally caffeine-free, and each brings its own active compounds:

•             Chamomile: apigenin, for calm and sleep

•             Lavender: linalool, for a racing mind

•             Rooibos: aspalathin, a unique antioxidant

•             Peppermint: menthol, for digestion

Our caffeine-free herbal blends include Sleep Restore, Quiet Mind and Serene Tranquility. Full explanation in Tea vs Tisane.

What Is the Difference Between Green and Black Tea?

Only processing. Green tea is heated to stop oxidation, so it stays fresh, light, rich in catechins and lower in caffeine. Black tea is fully oxidized, so it becomes dark, bold, rich in theaflavins and higher in caffeine. Same plant, same leaf, different handling.

Which Type of Tea Is Healthiest?

Each type is a champion of something different:

•             For catechins and EGCG: green tea and matcha. [2]

•             For calm focus (L-theanine): matcha, shade-grown for the highest levels.

•             For heart health research: black tea, linked to lower blood pressure [5] and, with green tea, to a 21% lower stroke risk at three cups a day. [6]

•             For metabolism research: oolong. [4]

•             For zero caffeine and targeted benefits: herbal tisanes chosen for their herb.

The best approach is to match the type to your goal and your time of day.

Which Type of Tea Is Right for You?

•             Strong morning cup: black tea or matcha

•             Calm, clear focus: green tea or matcha

•             Light and floral: white tea or a light oolong

•             Pre-workout or long afternoon: oolong

•             Rich and earthy: pu-erh

•             Caffeine-free evening: a herbal tisane

Choosing by how you want to feel? Shop by Benefit

How to Brew Each Type

Lighter teas need cooler water and shorter steeps; darker teas and herbals need a full boil and longer. Every type in our steep time and temperature chart.

The Avodah Moment: A Tea for Every Season of You

Avodah means devotion and service. Just as one tea leaf becomes six different teas depending on how it is handled, you show up differently through the day: focused in the morning, stretched by the afternoon, ready to rest by night.

Let your tea meet you there. A bright cup when you need clarity. A floral one when you need lightness. A caffeine-free one when the day is done. Choose on purpose, brew it slowly, and let each cup mark the season of your day.

You cannot pour from an empty cup. This is where you fill yours.

Explore Avodah Teas | Explore More Tea 101 Guides

Frequently Asked Questions

What are the main types of tea?

Six true teas, all from Camellia sinensis: white, green, yellow, oolong, black and dark tea (pu-erh). Plus herbal tisanes, made from other plants.

What is the difference between green and black tea?

Only processing. Green tea is heated to stop oxidation; black tea is fully oxidized, making it darker, bolder and higher in caffeine.

Which type of tea has the most caffeine?

Matcha and black tea are highest among everyday teas. White tea is lowest of the true teas, and herbal tisanes have none.

Is herbal tea a type of tea?

Not a true tea. Herbal teas are tisanes made from other plants, though everyone calls them tea.

Which type of tea is healthiest?

Each excels at something: green tea and matcha for catechins, black tea for heart health research, oolong for metabolism, and herbal teas for caffeine-free targeted benefits.

What is oolong tea?

A partly oxidized tea that sits between green and black, ranging from floral to roasted, and re-steeps beautifully.

What is pu-erh tea?

A fermented, aged dark tea from Yunnan, China, with a deep, earthy flavour that can improve with age.

Your day. Your tea. Your Avodah Moment.

References

1.          Khan N, Mukhtar H. Tea polyphenols in promotion of human health. Nutrients. 2018;11(1):39.

2.          Graham HN. Green tea composition, consumption, and polyphenol chemistry. Prev Med. 1992;21(3):334-350.

3.          Juneja LR, Chu DC, Okubo T, Nagato Y, Yokogoshi H. L-theanine: a unique amino acid of green tea and its relaxation effect in humans. Trends Food Sci Technol. 1999;10(6-7):199-204.

4.          Rumpler W, Seale J, Clevidence B, et al. Oolong tea increases metabolic rate and fat oxidation in men. J Nutr. 2001;131(11):2848-2852.

5.          Hodgson JM, Puddey IB, Woodman RJ, et al. Effects of black tea on blood pressure: a randomized controlled trial. Arch Intern Med. 2012;172(2):186-188.

6.          Arab L, Liu W, Elashoff D. Green and black tea consumption and risk of stroke: a meta-analysis. Stroke. 2009;40(5):1786-1792.

*These statements have not been evaluated by the Food and Drug Administration or Health Canada. Avodah teas are not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, nursing, taking medication or managing a health condition, speak with your healthcare provider before adding a new herbal tea to your routine.