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Discover the secret behind Japan’s delicious tea! Visit Kyushu tea plantations and raw tea factories live

Published: 2026-09-25 👁 100 views
Last updated 2026-09-25 — Fresh tea bags are produced Up! It's truly a lucky opportunity to step into a raw tea factory and witness the entire tea-making process. From the tea farmers' harvest onward, every step is handled with care. Our reporter visited “Ijiri Tarō Tea Garden” on-site to show you how tea is produced—come along on an aromatic tea-hunting journey!


▲ The first harvest of the year in April is called “Ichibancha” (first flush), known as spring tea in Taiwan.

Reported and photographed by Jiang Yanting / Kyushu

Fresh tea bags are produced Up! It's truly a lucky opportunity to step into a raw tea factory and witness the entire tea-making process. From the tea farmers' harvest onward, every step is handled with care. Our reporter visited“Ijiri Tarō Tea Garden”to show you how tea is produced—come along on an aromatic tea-hunting journey!

% Both tea gardens have a harvesting season from around April to November.

First, let’s introduce the two types of tea most loved by Japanese people: the first is sencha, and the other is bancha. There are slight differences based on production methods. Sencha is relatively simple to make; typical sencha is “lightly steamed sencha,” which is only steamed for 30 to 40 seconds before being rolled and dried. However, since the Edo period, Shizuoka Prefecture has produced “deep steamed sencha,” which extends the steaming time to 60 to 90 seconds. Although the leaves become softer, the flavor emerges more quickly during brewing compared to “lightly steamed sencha,” and the tea leaves are bluish-green in color.

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Roasted tea belongs to the bancha category and is the second most popular tea in Japan. It’s made from the stems and stalks leftover from lightly steamed sencha, so it contains no leaves—only stems. After undergoing high-temperature roasting and baking, it turns brown in color and has a strong aroma.

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As modern people pay more attention to health, organic tea farms are gradually emerging in Japan. However, it takes three consecutive years without using any chemical fertilizers or pesticides to obtain organic certification. One such product is Kurogashi Tea Quest, which will be launched in Taiwan on May 4.

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From picking the tea leaves to producing each tea bag, a complex series of steps is involved. The basic production process begins with steaming to halt oxidation fermentation (enzymatic) reactions, then rolling into fine coils, and finally drying. Each step is carefully controlled in duration to preserve the most natural flavor of the tea leaves. Below is the production process of crude tea introduced by green tea appraiser Saitō Yoshiaki (using sencha as an example):

1. Steaming (30–90 seconds): Uses hot steam to stop the oxidation (enzyme) reaction in the tea leaves.
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2. Rough rolling (45 minutes): Stirring and pressing in hot air to reduce moisture content in the leaves.
3. Rolling (20 minutes): The only rolling process in the manufacturing procedure without added hot air; this step equalizes the moisture content throughout the leaves.
4. Medium rolling (40 minutes): The leaves are again treated with hot air and rolled into an even finer shape.
5. Finishing roll (40 minutes): The leaves are shaped and dried simultaneously, forming them into needle-like shapes.

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6. Drying (30 minutes): Reducing the moisture content in the leaves to 5%.
7. Crude tea: Once the tea leaves are sufficiently dried, the resulting product is called primary processed tea.

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