Matcha is a powdered green tea made from Camellia sinensis leaves. Unlike ordinary steeped green tea, matcha is whisked into water or milk, so the drink contains suspended tea powder rather than only an infusion.
Matcha is strongly associated with Japan and with the Japanese tea ceremony. It is also used in lattes, sweets, ice cream, cakes, noodles, sauces, and modern cafe drinks.
Production
Matcha is made from shade-grown tea leaves. Shading before harvest changes the leaf chemistry and helps produce the green colour, amino acid profile, and savoury flavour associated with higher-quality matcha.
After harvest, the leaves are steamed to reduce oxidation, dried, sorted, and processed into tencha. Stems and veins are usually removed before grinding. Traditional matcha is ground into a fine powder with stone mills, although commercial production can use modern equipment.
Freshness matters. Good matcha is usually vivid green, finely milled, and stored away from light, heat, air, and moisture.
Preparation
Traditional preparation uses a tea bowl, bamboo whisk, and hot water. The powder is sifted or loosened to reduce clumping, then whisked until smooth.
Two common preparations are:
- Usucha: thin matcha, lighter and usually frothy.
- Koicha: thick matcha, made with more powder and less water.
Modern drinks often combine matcha with milk, plant-based milk, sugar, syrups, or ice. Those drinks can taste very different from plain matcha and may have a much higher sugar content.
Tea Ceremony
The Japanese tea ceremony is known as chanoyu or sado. It centres on the preparation and presentation of matcha, but the practice also involves utensils, room setting, sweets, seasonal awareness, etiquette, and the conduct of host and guests.
Informal gatherings are often called chakai, while a fuller formal gathering may be called chaji.
Taste and Quality
Matcha can taste grassy, vegetal, savoury, sweet, creamy, bitter, or astringent depending on cultivar, shading, harvest, processing, grind, storage, water temperature, and preparation.
Marketing terms such as "ceremonial grade" and "culinary grade" are common in English-language retail, but they are not a universal formal grading system. For practical use, colour, aroma, texture, freshness, origin, and taste are more useful indicators than the label alone.
Composition and Caffeine
Matcha contains caffeine, catechins, amino acids such as L-theanine, chlorophyll, fibre, protein, and other plant compounds. The amount varies between products and serving sizes.
Because matcha uses powdered leaf, it can provide more caffeine per serving than a lightly brewed green tea. The FDA cites 400 mg of caffeine per day as an amount not generally linked with negative effects for most adults, but sensitivity varies.
Research on matcha composition shows that dry matcha powder can be rich in fibre and plant compounds, but health claims should be kept specific. A cup of matcha is still a caffeinated food drink, not a cure-all.
Storage
Matcha loses aroma and colour when exposed to oxygen, heat, moisture, and light. It is usually best kept sealed, cool, dry, and used soon after opening.
See Also
References
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