Matcha, answered simply
Matcha is not green tea that someone ground up. It is a dedicated product: the tea plants are shaded before harvest, which changes the leaf's chemistry toward sweetness and deep color; the picked leaf is steamed and dried without rolling into a raw material called tencha; and the tencha is slowly milled into a powder fine enough to suspend in water. Because the whole leaf is consumed rather than infused, everything the leaf carries - flavor compounds, aroma, caffeine - arrives in the cup more directly than in any steeped tea. That is why matcha tastes louder, why it feels substantial, and why a mediocre raw material cannot hide: there is no bag or strainer between the powder and the customer.
From shaded field to slow mill
The shading period, roughly three weeks before harvest, suppresses photosynthesis and pushes the leaf to keep more of its amino acids and chlorophyll - the same trick behind shade-grown sencha styles such as gyokuro, taken further for matcha. After picking, the leaf is steamed within hours to fix the green, then dried without rolling; stems and veins are removed, because what goes to the mill must be soft, clean leaf flesh. Milling is the slow part: traditional granite stone mills grind only tens of grams an hour at correct temperature, because fast grinding heats the powder and cooks off both color and aroma, so larger operations pair stone mills with bead mills to reach foodservice volumes. The desk covers the machinery and its trade-offs in the milling methods note; for buyers the short version is that milling capacity, not leaf, is usually the supply bottleneck.
Grade names and what to verify
The trade splits matcha into ceremonial and culinary bands, and buyers should treat those words as shorthand, not as a standard - no legal definition fixes where one ends and the other begins, so two suppliers' culinary grades can differ more than their names suggest. Buy on the sheet and the sample.
| Trade shorthand | Typical use | What to verify on the sample |
|---|---|---|
| Ceremonial | Whisked straight, usucha and thick koicha service | Vivid green, fine particle size, umami depth, little astringency |
| Premium / latte | Milk drinks, iced matcha, dessert toppings | Color holds through milk, no bitterness at foodservice dose |
| Culinary | Baking, ice cream, confectionery, sauces | Flavor survives heat and sugar, dose cost works per kilo of product |
Color is the fastest screen: dull or yellow-green powder in the dry sample never becomes vivid in the cup, and particle fineness shows in how cleanly it suspends. Ask for color measured against a retained reference and for particle spec if your application is demanding, and cup every batch - the desk retains samples per lot so reorders match the first delivery.
Where matcha shows up commercially
The uses now outrun the tea counter. Cafes build lattes and iced matcha on latte-grade powder; bakeries and ice cream makers work in culinary grades where heat and sugar are part of the recipe; ready-to-drink bottlers dose matcha into blends that must stay green on a shelf for months; and cosmetics-adjacent buyers ask about food-grade material for masks and soaps, which is a labeling question before it is a sourcing one. Demand growth has tightened supply of the top material - the desk tracks that pressure in a separate note on why matcha feels scarce - so programs that commit a season ahead and lock specs in writing tend to eat better and wait less than buyers who chase spot material after a trend spikes.
Preparation: whisk, shaker, blender
Matcha asks for one gram or two per hundred milliliters of water at about eighty degrees C. The traditional path is a bamboo whisk and a bowl, sifting the powder first so it hydrates without clumps; the foodservice paths are a shaker with a splash of warm water to make a paste, or a blender for iced and milk-based serves. Each method gives a different texture - whisked matcha holds a fine foam, shaker matcha drinks lighter, blended matcha turns silky with milk - and the desk's preparation note lays out doses and steps for all three so staff training takes minutes instead of weeks. Water that is too hot is the most common failure: it thins the umami and pushes bitterness forward, and no grade of powder survives it gracefully.
Sourcing and paperwork
The desk sources edible-grade matcha principally through Chinese production in Zhejiang and Guizhou, where shading, steaming, and stone and bead milling are established at scale, and coordinates Japanese-channel material where a program needs a specific profile. Organic chains exist through certified field, processing, and milling steps, with certificates verified per project and purchase records available on request; the certification page summarizes the chain and what documents each framework needs. Whatever the origin, the working paperwork is the same: a spec sheet naming raw material and mill type, a retained reference sample, and a lab panel per lot. Nothing here is promised verbally - lot records and panels are confirmed in writing with each program, which is also what makes a matcha line defensible when a customer asks where the green color comes from.
Storage: the green is the clock
Matcha ages faster than any other tea format because the milling exposes the whole leaf to air at once. Oxygen, light, and heat each pull color and umami down, and an open pack in a warm prep station can go dull within weeks. The defenses are mechanical: foil barriers with the air flushed out, small pack sizes that get opened and finished quickly, refrigerated or cool dark storage, and stock rotation by production date. For retail, single-serve tins and sticks keep the powder bright until the moment of use; for cafes, order cycles beat bulk bargains. Buy the size you can turn over, store it like a spice rather than a sack, and treat any powder that has lost its green as past its best - it will still bake, but it will no longer sell the category on sight.