Green Tea – Origin, Varieties & Preparation

Green Tea

A delicate aroma, vibrant green and thousands of years of tradition – green tea combines history, culture and modern enjoyment in a single cup. In this detailed guide from dietees, you'll learn everything important: from the difference between classic leaf green tea and matcha, to the most popular varieties such as sencha, gyokuro and jasmine, right through to proper preparation – so that every cup can unfold its full aroma.

Was ist grüner Tee?

Green tea is an infusion made from the leaves of the tea plant Camellia sinensis – the same plant from which black tea, oolong and white tea are also made. What sets green tea apart is its processing: the freshly harvested leaves are heated with steam or in a pan directly after picking to stop oxidation. This allows the leaves to retain their characteristic green colour and fresh, slightly grassy aroma.

Green tea originates in China, where it has been cultivated for over 4,000 years. From there it spread to Japan, where its own processing techniques and tea rituals developed. Today, green tea is grown worldwide – above all in China, Japan, India and Sri Lanka – with an impressive variety of flavours thanks to different growing regions and production methods.

Klassischer Blatt-Grüntee vs. Matcha – der wichtige Unterschied

Before we dive into the varieties, there's a fundamental differencethat many people aren't aware of: there are two very different ways to drink green tea.

Feature Leaf Green Tea Matcha
Cultivation Sunny Shaded (3–4 weeks before harvest)
Form Loose leaves Finely ground powder
Preparation Infusion with 70–80 °C, 1–3 min., strain Whisked with chasen, 75–80 °C
Consumption Infused liquid only Whole leaf powder
Caffeine ~20–30 mg per cup ~60–70 mg per cup
Aroma Fresh, grassy, slightly bitter Creamy, umami-like, intense

📖 Related Guide: Matcha deserves its own guide. You'll find all the details on cultivation, quality grades, preparation with the chasen and suitable bowls in our detailed matcha guide. In this article, from here on we'll focus on classic leaf green tea.

Beliebte Sorten von Blatt-Grüntee

Within the world of classic leaf green tea, there is a remarkable variety – each type with its own character, growing region and processing tradition. Here are the most important classics:

Aromatisierte Grüntees

Alongside the classic varieties, there are also elegantly flavoured green teas, refined with natural flavourings on a base of high-quality sencha or bancha:

  • Organic Jasmine Chung Hao: green tea, scented with real jasmine blossoms – the classic Chinese flavouring with a floral, sweet note.
  • Earl Grey Green Tea: A modern take on the British classic – green tea with bergamot flavouring, fresher and lighter than the black tea version.

At dietees, we consistently make sure of one thing: only natural flavourings, never synthetic ones. This creates aromatic variations that stay true to their origin.

Inhaltsstoffe – Catechine, L-Theanin und Koffein

Green tea contains a range of natural plant compounds that have long been valued in tradition. Important to note first: green tea is a foodfood, not a medicine. Specific health-effect claims are not legally permitted for teas in Germany (Heilmittelwerbegesetz, HWG).

The characteristic components include:

  • Catechins – plant compounds responsible for the typically slightly bitter flavour profile. Particularly present in young tea leaves.
  • L-theanine – an amino acid found in tea leaves that contributes to the characteristic umami taste.
  • Caffeine – naturally present, around 20–30 mg per cup of leaf green tea (for comparison: black tea approx. 40–50 mg, coffee approx. 80–100 mg).
  • Polyphenols and minerals – round out the natural profile of the tea plant.

These components should primarily be understood as flavour-giving and aroma-defining components . Anyone wanting to know more about individual compounds should consult scientific sources or a medical professional.

Grüner Tee richtig zubereiten

Careful preparation determines the taste and aroma quality. The most important rule for leaf green tea: don't boil the water, but let it cool down. Water that's too hot releases too many bitter compounds and makes the tea unpleasantly bitter.

Tip: Glass teapots with an integrated filter are particularly well suited for optimal preparation – they show off the beautiful infusion colour. You'll find suitable tea accessories in our category Tea Accessories.

Häufige Fragen zu grünem Tee (FAQ)

Green tea is an infusion made from loose leaves – you drink only the liquid. Matcha is finely ground tea powder that is whisked with a bamboo whisk and consumed in its entirety. As a result, matcha contains significantly more caffeine (~60–70 mg) than leaf green tea (~20–30 mg). More details in our matcha guide.

Classic leaf green tea contains around 20–30 mg of caffeine per cup (250 ml), depending on the variety and steeping time. Longer steeping increases the caffeine content. Bancha and hojicha are particularly low in caffeine, gyokuro somewhat higher.

Let the water cool to 70–80 °C (not boiling!), use 1 tsp loose organic green tea per 250 ml, steep for 1–3 minutes, then strain. High-quality varieties can be infused 2–3 times.

Popular varieties include sencha (Japan and China), gyokuro, bancha, hojicha, genmaicha, longjing and gunpowder, as well as flavoured varieties such as Jasmine Chung Hao and Earl Grey green tea. Matcha is considered its own category (powdered tea).

Green tea contains caffeine. During pregnancy and breastfeeding, consumption should be reduced or discussed with a doctor. 1–2 cups per day are usually considered safe – if in doubt, seek individual advice.

When stored airtight and protected from light in a tea tin, loose green tea keeps for around 12–18 months. Aroma and compounds diminish over time. Store in a cool, dry place – not in the fridge, as condensation can form.

Yes – high-quality varieties such as sencha, gyokuro or longjing can be infused 2–3 times. Each infusion brings a new flavour profile. For the second and third infusions, shorten the steeping time slightly.

The main difference is the oxidation: green tea is heated immediately after harvesting – meaning the leaves are not oxidised. Oolong, on the other hand, is semi-fermented (10–80% oxidation) and thus sits between green tea and black tea. The result: oolong often has more complex, rounder flavours with fruity and honey notes. More in our oolong guide.

Discover our selection of organic green teas in the Green Tea Category or browse our entire range of organic teas.

📖 Related Guides: matcha guide · oolong guide

Note: The content of this article is for general information purposes only and does not replace medical advice, diagnosis or treatment. If you have health concerns, please consult a doctor. Green tea is a food, not a medicine.