Sencha Explained: The Tea Behind Most of What Japan Drinks

If someone in Japan offers you green tea without specifying which, this is what arrives. Sencha is the default, the reference point, and the tea against which everything else gets described.

It is also the one where a single production variable — invisible in the cup until you know to look for it — produces two teas different enough that people who dislike one often like the other. That variable is measured in seconds, and it is printed on most Japanese packaging in a form nobody explains to foreign buyers.

What sencha is

Leaves from Camellia sinensis, grown in full sun (unlike gyokuro and matcha, which are shaded), picked, and then — this is the step that defines Japanese tea — steamed within hours of harvest.

That steaming is what separates Japanese green tea from Chinese green tea, which is pan-fired instead. Steam halts oxidation almost instantly and locks in the vegetal, marine, slightly sweet character that reads as distinctively Japanese. Fired leaves taste nuttier and rounder; steamed leaves taste greener and brighter.

After steaming the leaves are rolled and dried, which is where sencha gets its needle shape.

Nothing here is exotic. What makes sencha interesting is what happens in the steamer.

The variable nobody explains: steaming time

Steam the leaves for the standard time and you get futsuu-mushi — regular steaming. Steam them two to three times as long and you get 深蒸し (fukamushi), deep-steamed tea, which behaves like a different product.

Longer steaming breaks down the leaf cell walls. The leaves become fragile and fragment during rolling, which is why deep-steamed tea looks broken and dusty compared with the elegant needles of regular sencha.

Those fragments are the whole point. They pass into the cup as fine particles, making the brew cloudy and green, and they carry compounds that ordinarily stay locked in the leaf. You are drinking a bit of the leaf itself, not only an infusion of it — a small step in the direction of matcha.

Which should you buy? If you find Japanese green tea too astringent, or you have been disappointed by it before, buy deep-steamed. It is sweeter, thicker, more forgiving, and harder to ruin. If you want aroma and clarity, and you enjoy the brisk edge, buy regular.

If tea you have tried tasted thin and sharp, there is a good chance it was regular sencha brewed slightly wrong. Deep-steamed would have hidden the error.

One practical note: deep-steamed tea clogs fine mesh filters, because those fragments have to get through. A generous basket or a ceramic mesh handles it; a tight infuser does not.

This is the shape that copes with it — a basket wide enough that the fragments have somewhere to go, rather than an infuser that packs them against a screen:

Sencha is shrinking

Sencha remains the largest single category of Japanese tea, but its position has weakened sharply.

Production down to 60% of its former level, and prices down with it — falling volume has not made the remaining tea more valuable.

Meanwhile tencha, the leaf that becomes matcha, nearly tripled over the same period to 4,176 tonnes and holds an average price of ¥3,141 per kg. Farms have been converting, and the reason is straightforward: matcha demand abroad grew while leaf tea drinking at home declined.

Production and price figures from the Ministry of Agriculture, Forestry and Fisheries, "Current State and Issues of the Tea Industry and Tea Culture" (November 2024), citing the National Federation of Tea Producers' Associations.

There is an irony worth naming. Sencha is what Japan actually drinks and what Japanese tea culture is built on, while matcha is what the world buys. The tea most central to the tradition is the one under the most pressure.

How to brew it

Two rules do most of the work. Do not use boiling water — it extracts catechins before theanine, producing bitterness with nothing to balance it, and it is the single most common reason people conclude they dislike green tea. And decant completely, because liquid left on the leaves keeps extracting and ruins the next infusion.

Full detail is in our brewing guide.

Buying it

In rough order of how much each factor matters:

1. 一番茶 / 新茶 (first flush / new tea). The strongest factual quality claim on a package
2. Deep-steamed or not. Matches the tea to your palate more than price does
3. Freshness. A packing date within the last few months
4. Quantity. 50–100g. Green tea does not improve on a shelf
5. Region. Last, and a weaker signal than any of the above

A reasonable everyday sencha in Japan runs roughly ¥800–2,000 per 100g. Above that you are buying first-flush single-origin leaf, which is worth doing once you know you like the category — but do not start there.

The short version

• Sencha is sun-grown, steamed green tea — the Japanese default, and the reference point for everything else
• Steaming time is the hidden variable. Regular is 30–40 seconds; deep-steamed (fukamushi) is 60–100
• Deep-steamed is cloudier, sweeter, less astringent and more forgiving. Start there if green tea has disappointed you before
• Deep-steamed tea clogs fine filters — use a roomy basket
• Production has fallen to 60% of its 2008 level while matcha's raw material nearly tripled
• Brew at 70–80°C for 60 seconds, and pour out every drop

For how sencha compares with the rest, see the guide to the types. The brewing guide covers temperature and ratio in detail, reading a Japanese tea label covers spotting 深蒸し and 一番茶 on packaging, and how to store it matters once the bag is open.