Matcha is finely ground green tea made from tencha. The tea is cultivated under shade before harvest, steamed, dried without the rolling used for sencha, refined and milled into a fine powder. When you whisk matcha with water, the powder is suspended rather than dissolved; you drink the suspended leaf material instead of straining it out.

That definition matters. Matcha is not simply any green tea put through a grinder, and the word itself does not guarantee high quality. Colour, price, origin and labels such as “ceremonial grade” can all tell part of the story, but the raw material, processing, freshness and intended use tell considerably more.

Start with the question you have

What exactly counts as matcha?

The international technical reference ISO/TR 21380:2022 defines matcha through its plant source, cultivation and manufacture. The Kyoto Prefectural Tea Industry Chamber, quoting the Japanese tea trade's labelling standard, describes tencha as tea cultivated under cover for roughly two to three weeks, then steamed and dried without rolling. Milling that tencha into a fine powder produces matcha.

Producers do not all use the same cultivar, shade material, harvest method, steaming time, refining choices or mill. Those differences help explain why two genuine matchas can look, smell and taste quite different. The definition identifies a production family; it does not award every product the same quality.

Matcha and three products commonly confused with it
Term What it means What happens in water
Matcha Finely milled tencha made from covered, steamed and unrolled green tea The leaf powder disperses but does not truly dissolve
Powdered green tea Sencha or another finished green tea ground into powder The powder also remains suspended; it is not matcha merely because it is green
Instant green tea A brewed tea extract that has been concentrated and dried Designed to dissolve in water
Matcha latte mix A formulated product that may contain sugar, milk powder, flavouring or other ingredients Behaviour depends on the recipe; check the ingredient list

Matcha therefore belongs within green tea; it is not a seventh tea type. What makes it unusual is the combination of covered cultivation, tencha processing, fine milling and a preparation method in which the powder remains in the bowl.

How tencha becomes matcha

  1. The tea garden is covered before harvest. Reducing the light changes the developing shoots and contributes to matcha's deep colour, characteristic covered-tea aroma and umami-rich taste. The precise duration and intensity vary; “four weeks of shade” is not a universal rule.
  2. The shoots are harvested. Fine matcha may be hand-picked, but mechanical harvesting is also common. Hand-picking can improve selection; it is not part of the basic definition and does not rescue poor cultivation or processing.
  3. The fresh leaf is steamed. Heat rapidly deactivates the enzymes responsible for enzymatic oxidation. This is why matcha belongs to green tea rather than oolong or black tea.
  4. The leaf is cooled and dried without rolling. Sencha is rolled through several stages; tencha is kept comparatively flat and open so it can later be refined and milled.
  5. The dried tea is refined. Stems and coarser material are separated, and a producer or blender may combine lots to create a consistent flavour. The finished material before milling is tencha.
  6. The tencha is milled finely. Traditional stone mills remain important, especially for fine drinking matcha, but Japanese industry guidance also recognises powder made with other mills, including ball mills. “Stone ground” is useful information, not a complete quality certificate.

The Kyoto chamber's detailed tencha production guide shows steaming, cooling, drying and stem separation as distinct operations. In other words, “picked, dried and stone-ground” skips most of the craft.

Did matcha originate in China or Japan?

Both places belong to the answer, but not in the same way. Tea was already being compressed and ground in Tang China, and whisked powdered tea became prominent during the Song dynasty. According to the Urasenke account of chado's history, the monk Eisai introduced powdered tea to Japan after returning from China around the end of the twelfth century.

The modern product was not transferred fully formed. Japanese growers, tea makers, merchants and tea practitioners transformed cultivation, processing, blending, utensils and service over centuries. During the fifteenth and sixteenth centuries, figures including Murata Shukō, Takeno Jōō and Sen no Rikyū helped shape the practices that developed into chanoyu, the Japanese Way of Tea. The contemporary tencha-and-matcha system is therefore Japanese in its mature form while belonging to a much older East Asian history of powdered tea.

Nor did matcha remain frozen in a sixteenth-century tea room. It has long been used in Japanese confectionery and is now prepared in cafés and kitchens around the world. A strawberry latte is not chanoyu, but it does not pretend to be; it is a modern drink using a traditional tea ingredient. The distinction is more useful than arguing that only one form is “authentic.”

What should good matcha taste like?

Matcha can be sweet, savoury, creamy, vegetal, marine, nutty or floral. Fresh pea, young spinach, nori and steamed greens are common reference points, but no single list describes every cultivar or blend. Umami is important in many fine matchas; measured bitterness and astringency can still be part of a balanced bowl.

“No bitterness” is not a serious universal quality test. The same matcha can be gentle at 1.5 g in cooler water and aggressively bitter at 4 g in boiling water. Conversely, a flat powder can be easy to drink simply because it has little aroma or structure left. Judge the material at a known dose and temperature before blaming or praising the label.

Colour is useful, but internet colour tests are crude. Cultivar, shade, harvest, processing and storage all affect green colour, while cameras, editing and phone screens affect the photograph. Fresh matcha should not look brown or smell musty, but “the brightest neon green wins” is not professional tasting.

Fine matcha also clumps readily because of its particle size, static and ambient moisture. Small dry clumps are normal and disappear after sifting or proper whisking. Damp lumps, a musty smell or visible mould are a different matter.

“Ceremonial grade” is not a universal standard

Ceremonial, premium, latte, barista and culinary are commercial labels rather than one regulated international grading ladder. A seller can use them to distinguish products within its own range, but “ceremonial” from one company is not automatically equivalent to “ceremonial” from another. The official definitions above specify how matcha is made; they do not create those retail tiers.

That does not make every label dishonest. It means the label should begin a conversation rather than end it. Choose by the drink or food you intend to make.

Choosing matcha by use rather than by an impressive word
Use What to look for Question worth asking
Usucha, or thin tea Fresh aroma, a balanced finish and enough depth to drink with water alone Was this matcha selected and tested for straight preparation?
Koicha, or thick tea A matcha specifically recommended for the much more concentrated preparation Does the producer or tea shop actually recommend this blend for koicha?
Matcha latte Clear tea character, colour and enough structure to remain present through milk Does it still taste like matcha at the dose and milk ratio I use?
Baking and desserts Aromatic strength, useful colour and a price suited to the amount the recipe needs Is it 100% tencha matcha, and was it selected for food use?

Look beyond the front label. Useful information includes the country and region of origin, producer or blender, harvest or lot, cultivar when known, intended use, ingredients, pack size and storage barrier. First harvest, hand-picking, a named cultivar and stone milling may all matter when they are documented; none alone guarantees that you will prefer the cup. Organic certification describes a production standard, not a sensory grade.

Matcha is now made outside Japan as well as within it. China, for example, has a current voluntary national standard titled GB/T 34778-2017 Matcha. Japanese, Chinese and international definitions are not identical, so nationality is not a substitute for transparent information about the actual process. A seller should state origin plainly instead of hiding it behind a Japanese-looking design. Our detailed matcha quality guide goes further into the familiar grade terms and practical selection.

How to prepare matcha

Usucha: a reliable starting bowl

The Kyoto Prefectural Tea Industry Chamber's preparation guide uses about 2 g of matcha and 50–60 ml of water for thin tea. Use that as a starting point, then adjust the ratio and temperature to the particular matcha.

  1. Heat fresh water and let it cool to around 80 °C. Preheat the bowl and soften the bamboo whisk in hot water, then empty and dry the bowl.
  2. Weigh 2 g of matcha. Sift it into the bowl; a tea scoop is elegant but not a calibrated measuring instrument.
  3. Add 50–60 ml of water. First mix slowly to wet all the powder, then whisk briskly back and forth from the wrist until the surface is even and finely foamed.
  4. Drink it promptly. Matcha is a suspension and will gradually settle if left standing.

Boiling water does not make matcha poisonous and cooler water does not “preserve all the nutrients.” Temperature is mainly a flavour variable: very hot water can make bitterness and astringency more prominent and delicate aromas harder to notice. If the bowl is harsh, first try a little less powder or cooler water.

Matcha latte

  1. Sift 2 g of matcha into a bowl or mixing cup.
  2. Add 30–50 ml of water at roughly 70–80 °C and whisk until smooth.
  3. Add about 150–200 ml of hot or cold milk or a plant drink.
  4. Taste before adjusting. If the milk overwhelms the tea, use slightly more matcha or less milk rather than relying on the word “premium.”

For an iced latte, pour the smooth matcha base over cold milk and ice. Sweetener, fruit, boba and red beans are choices rather than requirements. They change the drink, not the underlying definition of matcha.

Do I need a bamboo whisk?

A chasen is excellent at dispersing fine powder and producing the foam associated with usucha, but it is not the admission ticket to drinking matcha. A small electric frother can make a smooth everyday drink; for a latte, a blender also works. Sifting, using a dry bowl and making a smooth base before adding the rest of the liquid matter more than owning an elaborate tool set.

  • Clumps: sift the powder and wet it with a small amount of water first.
  • Harsh taste: reduce the dose, lower the temperature or try a matcha selected for water-only drinking.
  • Weak latte: reduce the milk or increase the weighed dose gradually.
  • Powder at the bottom: normal settling; swirl or whisk briefly again.
  • Little foam: check whisk condition, bowl shape and water volume; foam height alone is not a quality score.

How to store matcha

Matcha has an enormous exposed surface compared with an intact leaf. Humidity, oxygen, light, heat and surrounding odours therefore change it quickly. The Kyoto chamber's household storage advice recommends buying small amounts and using them within about a month.

  • Before opening: keep the sealed package refrigerated or frozen for longer storage. Let it return to room temperature while still sealed before opening, so moisture does not condense on the cold powder.
  • After opening: close it tightly and keep it in an opaque, airtight container in a cool, dark place. Use a clean, completely dry scoop.
  • Avoid repeated condensation: moving a poorly sealed container from refrigerator to warm room air every day can do more harm than a stable, cool cupboard. If you refrigerate opened matcha, seal it well and let the closed container warm before opening it.
  • Buy a realistic pack size: a large package is not economical if the final third becomes flat and dull before you use it.

A best-before date cannot tell you how often a package has been opened or how it was handled. Fading colour and aroma usually indicate declining quality rather than an instant safety boundary. Dampness, mould or a genuinely musty or foreign off smell are reasons to discard the powder.

Caffeine, L-theanine and health claims

Matcha contains caffeine, and dose matters. A scientific review compiled values of approximately 18.9–44.4 mg of caffeine per gram. On that range, a 2 g serving could contain roughly 38–89 mg. Cultivar, harvest, processing and the individual batch all matter; only laboratory testing can give an exact value for a product.

Matcha also contains L-theanine, but L-theanine does not bind caffeine or turn it into a slow-release stimulant. Research asks whether the combination changes particular attention or mood outcomes; a systematic review and meta-analysis found possible effects on some attention measures, with variable evidence. “Calm energy without jitters” remains a personal description, not a result guaranteed by the chemistry.

Catechins, caffeine, amino acids and chlorophyll can be measured in matcha. That does not prove that an ordinary bowl detoxifies the body, prevents cancer, produces meaningful weight loss or treats disease. Our guide to tea and health claims separates compounds, laboratory effects, biomarkers, observational associations and demonstrated clinical outcomes.

Individual caffeine tolerance varies. If matcha repeatedly causes nausea, shakiness, palpitations or stomach discomfort, reduce the dose or choose another drink instead of assuming that a more expensive grade will solve it. The matcha and stomach discomfort guide examines fasting, caffeine, catechins and latte ingredients in detail.

Matcha at RealiTea in Salzburg

At RealiTea, we judge matcha in the drink for which we intend to use it. A delicate water-only tea and a matcha that remains expressive through milk need not be the same product. We would rather explain origin, dose, taste and purpose than ask one grand-sounding grade label to do all the work.

Iced matcha latte with sweet red beans at RealiTea Salzburg

See the current RealiTea menu for hot and iced matcha drinks and the additions available now. If you want to compare styles or prepare matcha at home, ask us what a particular matcha was selected for and how we dose it. Our opening-times page has the current schedule for the Salzburg tea house.

Questions about matcha

Is matcha just powdered green tea?

It is a powdered green tea, but not every powdered green tea is matcha. Matcha is made from tencha: covered tea that is steamed and dried without rolling, then refined and finely milled. Powdered sencha and soluble green-tea extract are different products.

Do you consume the whole leaf?

You consume the refined leaf powder that remains suspended in the drink rather than discarding infused leaves. “Whole leaf” is convenient shorthand, although stems, veins and coarse material are normally removed while tencha is refined.

Must matcha come from Japan?

Japan developed the modern tencha-and-matcha tradition and remains its cultural and technical centre. Matcha is now also produced in China and elsewhere. Origin should be stated honestly, but it does not replace information about raw material, processing, freshness, intended use and taste.

Is ceremonial grade the best matcha?

There is no universal regulated “ceremonial grade” with identical requirements across brands. The term often signals a product intended for drinking with water, but you still need to know the seller's criteria and taste the tea. For koicha, choose a matcha specifically recommended for koicha rather than trusting the word ceremonial alone.

How much caffeine is in a bowl of matcha?

Published values vary. Using the range of 18.9–44.4 mg per gram cited above, a 2 g bowl could contain about 38–89 mg. A larger café drink is not automatically stronger; the powder dose, not the cup volume or amount of milk, determines how much matcha it contains.

What water temperature should I use?

Around 80 °C is a reliable starting point. Try cooler water if the matcha tastes harsh or if you want to emphasise sweetness and umami. The ideal setting depends on the tea, dose and your preference; it is not a health rule.

Can I prepare matcha without a chasen?

Yes. A bamboo whisk gives excellent dispersion and traditional usucha foam, but a small electric frother or blender can make a smooth everyday drink. Sift the powder and mix it with a little water before adding the rest of the liquid.

Why does matcha settle at the bottom?

Because it is a suspension, not a dissolved instant drink. Fine particles remain dispersed for a while and then settle. Drink it soon after whisking or swirl the final mouthful gently.

Should opened matcha be kept in the refrigerator?

It can be, provided the container is genuinely airtight and remains closed until it has warmed enough to avoid condensation. For daily use, a well-sealed opaque container in a stable, cool, dark place is often simpler. Buy an amount you can finish while the aroma is fresh.

Is there a recommended number of bowls per day?

There is no universal health prescription. Count the weighed matcha dose and all other caffeine you consume, then use your own tolerance rather than treating more as better. People who are pregnant, take medicines affected by caffeine or have a medical reason to limit caffeine should follow individual professional advice.

Sources and further reading

Matcha is one specialised branch of a much larger subject. Return to Tea Lore to explore tea plants, processing families, producing regions, brewing and individual teas.