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What is matcha?
Matcha is a finely-ground Japanese green tea powder grown in shade and whisked into water. Learn what makes it different from regular green tea, how it's made, and how to brew it at home.
Matcha is a stone-ground powder made from shade-grown Japanese green tea leaves. Unlike steeped tea, you whisk the entire leaf into water and drink it — meaning every cup delivers the full nutritional profile of the plant.
How matcha is made
Three to four weeks before harvest, tea farmers cover the tea bushes with shade cloth. The lack of sunlight forces the plant to produce more chlorophyll and L-theanine, giving matcha its bright green color and characteristic umami sweetness.
After harvest, leaves are steamed to halt oxidation, dried, de-stemmed, and stone-ground into a powder so fine it floats on water.
Matcha grades
- Ceremonial grade — first-harvest leaves, brightest color, most delicate flavor. Whisk with water only.
- Premium grade — second harvest, slightly more astringent. Daily-drinking matcha.
- Culinary grade — later harvest, stronger flavor, holds up in lattes and baking.
How to brew matcha
- Sift 1–2 grams (about ½ tsp) of matcha into a warm bowl.
- Add 60ml of water heated to 70°C / 160°F.
- Whisk in a rapid W or M motion until a fine foam forms (~15 seconds).
- Drink immediately — matcha settles fast.
Matcha vs. regular green tea
Regular green tea is steeped and discarded. Matcha is consumed in full, so the caffeine, L-theanine, and antioxidant content per cup is roughly 3–4× higher. The L-theanine balances the caffeine, producing the calm-alert state matcha is known for.
Frequently asked questions
Is matcha better than coffee?
Matcha contains about a third the caffeine of coffee, but pairs it with L-theanine, an amino acid that smooths the caffeine curve. Most drinkers report sustained focus without the crash.
How much matcha can I drink per day?
Up to 2 servings (2–4g) per day is widely considered safe for most adults. Higher amounts can deliver too much caffeine and, in rare cases, lead-exposure concerns.
Does matcha go bad?
Matcha doesn't spoil but it does fade. Sealed tins keep peak flavor for about 6 months in a cool, dark place; once opened, finish within 4–6 weeks.
Sources
- L-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance (Kelly et al., 2008) · Journal of Nutrition
- L-theanine, a natural constituent in tea, and its effect on mental state (Nobre et al., 2008) · Asia Pacific Journal of Clinical Nutrition
- Eisai (Myōan Eisai, 1141–1215) — author of Kissa Yōjōki (喫茶養生記, "Drink Tea, Prolong Life," 1211), Japan's first treatise on tea as medicine · Wikipedia (reference) / primary work c. 1211 CE