Japanese Matcha:
the complete guide.

Matcha is the most misunderstood tea in the world. In a decade it went from a Kyoto ritual object to a supermarket flavor, and along the way it stopped meaning anything specific. A "matcha latte" at a chain café and a whisked bowl of first-harvest ichibancha from Kirishima are, in practical terms, two different drinks made from two different products. This guide is the long version of that distinction — how matcha is grown, milled, graded, prepared, and chosen, written from the perspective of a single-origin Kagoshima grower.

What is matcha?

Matcha is powdered Japanese green tea made from Camellia sinensis leaves that have been shade-grown, steamed, dried, deveined, and stone-milled into a fine, vivid-green powder. Unlike sencha or gyokuro, matcha isn't steeped and discarded — the powder is whisked directly into hot water and drunk. You are, quite literally, drinking the leaf.

That single fact drives almost everything downstream. Because you consume the whole leaf, every gram of pesticide residue, oxidation, stem, or shading defect ends up in the bowl. And because the leaf is never separated from the liquid, sourcing and freshness matter more than they do for any other tea.

Ceremonial vs culinary grade

The grade of a matcha is a shorthand for the quality of the leaf, the harvest it came from, and its intended use. There is no single certifying body — the terms are conventions — but the industry broadly recognizes two tiers, with a fuzzy premium band above and a blending band below.

Ceremonial-grade matcha is made from the youngest, shade-grown first-harvest (ichibancha) leaves. It's vivid jade-green, smooth on the palate, low in bitterness, and high in umami and sweetness. It's intended to be whisked with water and drunk on its own, as usucha or koicha. Culinary-grade matcha comes from later harvests, may include more mature or lower-shaded leaves, and is formulated to survive sugar, dairy, and heat. It's the right choice for baking, ice cream, or a sweet latte — and the wrong choice for a whisked bowl.

A short deep-dive on how to tell the tiers apart lives here: ceremonial vs culinary matcha, side by side.

How matcha is made

The processing that makes matcha matcha happens in the last weeks before harvest and the days immediately after picking. Three steps do most of the work.

Shade-growing

Roughly three to four weeks before the first spring picking, the tea rows are covered with reed screens or synthetic shade cloth that block 70–90% of incoming sunlight. Deprived of light, the plant slows photosynthesis and floods its leaves with chlorophyll and amino acids — most importantly L-theanine — while producing fewer catechins. This is what gives ceremonial matcha its jade color, its umami weight, and its low bitterness.

Tencha (the un-rolled leaf)

Shade-grown leaves are hand- or machine-picked, steamed within hours to arrest oxidation, then air-dried without rolling. The dried leaf is then deveined and destemmed on a series of winnowing machines. What remains is called tencha — flat, brittle, pure leaf flesh. Only tencha can legally be milled into matcha.

Stone-milling

Tencha is fed into slow, granite stone mills that turn at roughly 30 rpm and produce about 30–40 grams of matcha per hour, per mill. Speed matters: too fast, and friction heat destroys the aroma; too slow, and the powder loses vitality. Cheap "matcha" is often air-milled or ball-milled in minutes — you can taste the difference immediately.

Where matcha is grown

Three prefectures produce most of Japan's serious matcha, each with a distinct style.

Uji (Kyoto) is the historical heart of matcha — the birthplace of the tea ceremony and home to the oldest producing houses. Uji matcha is prized for its complexity and pedigree, and priced accordingly. Nishio (Aichi) is the volume capital, producing a large share of Japan's matcha and much of what fills supermarket tins and café dispensers.

Kagoshima is the newer story and the more interesting one. Kagoshima is now Japan's largest tea-producing prefecture and holds the country's largest share of certified-organic tea acreage. The Kirishima highlands, at the foot of the Sakurajima volcano, grow tea on a bed of Shirasu — a fast-draining, mineral-rich volcanic soil laid down by 30,000 years of ash. Southern-latitude sunlight, cool nights, and clean volcanic terroir push the leaf toward density, aroma, and a long finish. If you want the full story on why volcanic-soil tea tastes different, read Kagoshima matcha: why volcanic-soil tea is different.

What "first harvest" means

Japanese tea plants are picked several times a year. The very first spring picking — called ichibancha, literally "first tea" — is made from the youngest leaves, which have spent the winter concentrating amino acids. Ichibancha is sweeter, more umami-rich, and less bitter than any subsequent harvest. Only ichibancha qualifies as true ceremonial-grade matcha; second and third harvests (nibancha, sanbancha) go into culinary and industrial blends.

The window is short — typically a few weeks between late April and mid-May — and a single field is picked only once for ceremonial use. That's why serious matcha is inherently seasonal and, at the top end, allocated in small lots.

Caffeine and L-theanine

A standard 2 g whisked serving of matcha contains roughly 60–70 mg of caffeine — slightly less than an average drip coffee and roughly on par with an espresso shot. The more interesting compound is L-theanine, an amino acid naturally present in shade-grown tea leaves at roughly 20–45 mg per serving. L-theanine is commonly described as producing a steadier, calmer kind of alertness when paired with caffeine, though effects vary by person. These are neutral biochemical facts — matcha is a beverage, not a medicine, and the reason to drink it should be that it's good.

How to prepare matcha

The traditional method — usucha, "thin tea" — is deliberately simple. Sift 1–2 g (about ½–1 teaspoon) of matcha into a warm chawan. Add 60–70 ml of water at 70–80 °C (158–176 °F); water off the boil is too hot and will scorch the powder into bitterness. Whisk briskly with a bamboo chasen in a "W" or "M" motion for about fifteen seconds, until a fine, even crema forms across the surface. Drink immediately.

For a latte, whisk the matcha with a small amount of hot water first — the same crema step — and then pour it into steamed milk of your choice. Skipping the water step and dumping powder directly into milk is why home matcha lattes so often taste chalky. The full step-by-step with common mistakes lives at how to make matcha: a step-by-step guide.

How to store matcha

Matcha's three enemies are air, light, and heat. Keep the tin sealed, opaque, and cool. A dark cupboard is fine; the refrigerator is acceptable if the tin is airtight and returned to room temperature before opening (otherwise condensation forms on the powder). Freezing works for unopened tins but is overkill for anything you plan to drink in the next month. Once opened, plan to finish a 30 g tin within four to six weeks for the color and aroma to stay honest.

How to choose good matcha

Four signals separate a real ceremonial matcha from a marketing one:

• Color. A vivid, almost fluorescent jade-green. Yellowish, olive, or dull green means low shading, late harvest, or old stock.
• Origin specificity. A real producer names the prefecture, region, and often the cultivar. "Product of Japan" with no region is a blend, usually the cheapest possible.
• Harvest and mill date. Ceremonial matcha should list a harvest year and, ideally, a stone-milling date. Freshness is a spec, not a vibe.
• Taste. A good bowl is sweet, vegetal, and long, with almost no bitterness at 70–80 °C. Sharp astringency at the correct temperature is a grade problem, not a preparation problem.

Frequently asked

Keep reading

• Ceremonial vs culinary matcha — how the grades actually differ, and which to buy for what.
• Kagoshima matcha and volcanic terroir — why Kirishima's Shirasu soil produces a different cup than Uji.
• How to make matcha, step by step — tools, temperature, ratios, and the whisk motion that actually works.
• Reserve a tin of Kirishima first-harvest — pre-order, no charge today.