Behind that famous bright green powder is a leaf called tencha, grown under shade for three to four weeks before picking. The shade slows the plant down and pushes it toward more chlorophyll and L-theanine, which is where matcha's umami character and smooth texture come from. After harvest the leaves are steamed to lock in colour, air-dried, then stripped of stems and veins before being stone-ground into the fine powder that ends up in the tin. Tencha comes from the same Camellia sinensis plant behind green, black, white, and oolong teas — it's the growing and processing that sets it apart. Japan's best-known matcha regions include Uji in Kyoto, Nishio in Aichi, and parts of Shizuoka and Kagoshima, prized for climate and soil suited to this kind of cultivation.
In the cup, matcha opens with a rich, almost creamy texture and a vegetal taste close to fresh young grass, alongside notes of seaweed, stone fruit, cream, milk, and a mineral edge reminiscent of coffee. Sweetness and umami come first, a light earthiness follows, and any bitterness stays gentle rather than sharp. It finishes smooth and lingering, with an aroma that leans toward fresh greens, sweet hay, and a touch of nuttiness. Because the whole leaf is ground rather than steeped and discarded, the colour stays vivid and the texture whisks up into a frothy, creamy consistency.
A gram of matcha carries roughly 70 to 100 mg of caffeine, in the same range as a cup of coffee, though L-theanine tends to slow its release into the body, giving a steadier lift without the sharp spike or crash. A latte made with a similar amount of powder lands in about the same range. Matcha has long been valued for its antioxidants, including catechins like EGCG, and its L-theanine is traditionally linked with calm, focused alertness alongside its caffeine.
To make it, sift a teaspoon of powder into a bowl, add a small amount of hot water around 80°C, not boiling, and whisk briskly in a zigzag motion until it froths. Top up with more water to taste. For a latte, whisk the matcha first, then add steamed milk, dairy or plant-based, sweetened if you like. For an iced version, mix the powder with a little hot water, pour over ice, and stir in cold milk.
