Sushi Restaurant Green Tea: What Konacha Is and Why It Comes Hot

If you have eaten sushi outside Japan, you have almost certainly been handed a heavy cup of very hot green tea, refilled without being asked, and never told what it was. Plenty of English-language guides will tell you two things about that cup: that it is sencha, and that the polite way to ask for more is to say agari.

Both are wrong, and the second one is wrong in a way that is worth knowing before you say it out loud.

The tea in that cup is konacha (粉茶) — literally "powder tea", though it is not a powder in the way matcha is. It is the fine fragments of leaf that fall out during the last stage of making ordinary green tea, sifted off and sold separately. It is the cheapest thing in the tea shop, it brews strong in seconds, and sushi counters adopted it for reasons that had nothing to do with tradition.

Here is what is actually in the cup.

What is actually in the cup

Five things get called "green tea powder" in English, and they are not interchangeable.

Tea	Made from	In water	Where you meet it
Konacha	Leaf fragments sifted out when finishing sencha	Brewed, then strained	Sushi counters, cheap teabags
Mecha	Buds and tips sifted out at the same stage	Brewed, then strained	Tea shops, sold as a bargain grade
Funmatsucha	Sencha ground or freeze-dried to dissolve	Dissolves completely	Conveyor-belt sushi, vending machines
Matcha	Tencha — shaded leaf, stone-ground	Whisked, stays suspended	Cafés, sweets, tea ceremony
Sencha	Whole rolled leaves	Brewed, then strained	Home, tea shops, restaurants

If you only remember one row: konacha is leaf, matcha is powder. The sushi cup was brewed and strained like ordinary tea, not whisked like matcha — it only looks cloudy because the pieces are so small.

Where konacha comes from

Green tea leaves the farm as aracha, or "crude tea" — finished enough to keep, but not yet sorted. The sorting happens at a finishing house, and it is mostly a sifting operation. Leaf goes across screens and comes out separated by size: the large pieces get cut down and returned to the sencha, the stems become kukicha, the buds become mecha, and the finest material — the dust at the bottom of the screen — becomes konacha. Everything is then fired to dry it down and lift the aroma.

This is the part people get wrong. Konacha is not a lower grade of tea. It is a smaller size of the same tea. The fragments falling through the screen came off the same leaves as the sencha in the tin above it, and if the batch being finished was an expensive one, the konacha sifted out of it came from expensive leaf.

What changes is not quality but behaviour. Break tea into small pieces and you multiply the surface area exposed to water, so everything comes out faster — colour, bitterness, caffeine, all of it, in a fraction of the time whole leaf would need.

Why sushi counters chose it

Sushi was street food before it was expensive. It was sold from stalls, eaten standing up, and priced accordingly, and the tea that came with it was chosen the way anything is chosen in a business with thin margins: konacha was the cheapest tea available, and it went on the counter for that reason.

The habit stuck, but it survived because it turned out to suit the job in three ways that a better tea would not have.

• It brews in seconds. Hot water onto leaf in the cup, and it is ready before it reaches the customer — no teapot and nothing to time
• It is strong without being fragrant. Konacha gives colour and briskness but very little aroma. A cup of good gyokuro next to raw fish would fight it; konacha does not compete with the food
• It cuts through fat. Strong, hot, slightly astringent tea resets the mouth between pieces — which is why it keeps being refilled rather than served once at the end

Notice that none of these are about making the tea taste good on its own. It is a working drink with a job, and the job is the fish.

Why it arrives scalding hot

Everything written about brewing Japanese green tea tells you not to use boiling water. Sencha wants 70–80°C, gyokuro closer to 60°C, and hot water past that point pulls out catechins and turns the cup harsh. The sushi counter ignores all of this and pours water that is very nearly boiling.

That is not carelessness. The tea is hot because the mouth is the point, not the tea. Heat and astringency are exactly what clears oil from the palate, and a cup at a gentle 70°C does not do that job. The same brewing decision that would ruin a cup of sencha you were drinking on its own is the correct one when the tea is there to reset you between a piece of fatty tuna and a piece of sea bream.

Boiling water is also the only thing a hot tap and a stack of cups can deliver, which is the other half of the answer.

Brewing figures for sencha and gyokuro follow the ranges in our brewing guide; the sushi counter is deliberately outside them.

"Agari" is not the word you think it is

This is the part worth knowing before your next meal.

Agari (あがり) does mean tea at a sushi restaurant. What the guidebooks leave out is that it was staff language, not customer language — the word a chef used to tell the floor that a customer had finished and should be brought the closing cup. Trade jargon, in other words, for coordinating service.

The etymology usually given traces it to agaribana, a term from the Edo-period entertainment districts for freshly brewed tea. The reason those districts avoided the ordinary word for tea is a small piece of superstition: for a geisha, a quiet evening with no customers was described as "grinding tea", so the word carried the wrong associations and a substitute was used instead.

None of that history is customer-facing. A customer asking for agari is using a word from behind the counter — the way a diner might order by calling out to the kitchen in restaurant shorthand. Some Japanese customers do it anyway, and no sushi chef is going to be offended, but it reads as trying on the trade's vocabulary rather than as etiquette.

If you want tea, ask for o-cha. That is what it is called, and it is what most people in Japan say inside a sushi restaurant.

The conveyor-belt version is a different drink

Sit down at a kaitenzushi — conveyor-belt sushi — and you will find a tap of hot water at the counter and a jar of green powder next to it. It is a fair assumption that this is konacha in a more convenient format. It usually is not.

What is in the jar is generally funmatsucha: sencha that has been ground very fine, or brewed and freeze-dried, and processed specifically so it dissolves. That is the difference that matters. Konacha is leaf, so it has to be brewed and strained; leaf fragments never dissolve, and the last mouthful of a cup made with real konacha has sediment in it. A powder that vanishes into the water is not konacha, and some of these blends have a little matcha added for colour.

So the traditional counter and the conveyor belt are serving genuinely different drinks, despite both being green, cloudy and free.

What Japanese homes do with konacha

Now the part that puts all of this in proportion.

Konacha is not something Japanese households sit down to drink. It has a fixed position in most people's mental map — it is the tea at the sushi place — and while a bag costs very little and any supermarket has one, it is rarely what gets brewed at home when someone wants a cup of tea. Its other major life is invisible: fine leaf fragments are what fills a great many cheap teabags, so plenty of konacha gets drunk by people who have never seen the word.

That is worth knowing when you are deciding whether to buy some, because it cuts both ways. Nobody in Japan considers this a special tea, and buying it will not connect you to a ritual. But it also means you can taste the fragments of a well-made sencha for a fraction of what the leaves cost, which is a genuinely good deal for anyone curious about what Japanese tea does when it is strong.

If sencha is a tea to pay attention to, konacha is a tea to drink while doing something else. That is not a criticism — most tea drinking, everywhere, is the second kind.

How to make it at home

Two changes turn the sushi-counter version into something you would drink on purpose: drop the temperature, and keep the time short.

	Water	Time	Leaf per 130ml
Konacha (sencha-based)	70–80°C	30 sec	2 g
Konacha (gyokuro-based)	around 60°C	30 sec	2 g

Thirty seconds is not a suggestion. At that particle size the tea is fully extracted in well under a minute, and a two-minute steep produces something genuinely unpleasant. Watch the colour rather than the clock if it helps — konacha goes from pale to deep faster than any other leaf tea you own.

The real obstacle is straining. Ordinary teapot filters are cut for whole leaf and konacha goes straight through them, which is why sushi restaurants use cups with a built-in fine mesh. Your options, in order of how little you have to buy:

• A fine mesh strainer over the cup. Put the leaf in the strainer, pour water through it, and stir briefly with a spoon
• A teapot with a deep fine-mesh basket, of the kind sold for broken-leaf teas
• Empty teabags, filled yourself — the least elegant answer and the one most likely to actually get used

Cloudiness in the finished cup is normal. Sediment at the bottom is also normal. Leave the last centimetre if it bothers you.

The short version

• The tea at a sushi counter is konacha — leaf fragments sifted out when finishing sencha, not a low grade and not a powder
• It was chosen because it was cheap, and it stayed because it brews instantly, does not compete with the fish, and cuts fat
• It comes scalding because heat clears the palate. That is the opposite of how you would brew tea you intended to taste
• Agari is staff jargon, not polite Japanese. Ask for o-cha
• The powder at conveyor-belt sushi is usually funmatsucha, processed to dissolve. Konacha never dissolves
• At home: 70–80°C, 30 seconds, and a strainer finer than the one in your teapot

If you buy one bag to try, buy the cheapest konacha in the shop and treat it as an experiment in what strength tastes like — not as a substitute for the sencha you would sit down with.

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For where konacha sits among everything else, see our guide to Japanese green tea types. The other bargains from the same sifting stage are covered in bancha and kukicha, and if you want the temperatures konacha is deliberately breaking, they are in our brewing guide.