Matcha (1 tsp)에는 카페인이 얼마나 들어 있나요?

70 mg — 이것은 데이터셋과 USDA FoodData Central에 기록된 Matcha(1 tsp) 240 ml 제공량의 카페인 양입니다 (출처: USDA FoodData Central).

카페인은 중추신경계 자극제입니다; 이 문장은 해당 개념이 처음 등장할 때의 정의입니다 (출처: Mayo Clinic). 실용적으로, 240 ml에 70 mg은 100 ml당 약 29.17 mg에 해당합니다 (계산: 70 mg ÷ 240 ml × 100 ml = 29.17 mg, 100 ml당; 출처: USDA FoodData Central), 이는 표준 240 ml 드립 커피 96 mg의 약 0.7배에 해당합니다 (비교: 70 mg vs 96 mg; 출처: TrackCaffeine 데이터셋 /dataset/).

70 mg 용량은 많은 사람에게서 일반적으로 15–45분 내에 가벼운 자극 효과를 일으키고 섭취 후 약 30–120분 내에 최고치를 보입니다(전형적인 발현 및 최고치에 대한 약동학적 개요; 출처: Mayo Clinic). 그러나 감수성은 유전, 최근 수면, 평상시 섭취량에 따라 크게 달라집니다(변동성 관련 약리학 문헌; 출처: Drake et al. 2013). 내장된 계산기를 사용하여 이 한 잔이 하루에 어떻게 들어맞는지 확인하세요: 카페인 반감기 계산기 (내부 도구).

Matcha (1 tsp)이(가) 체내에 얼마나 오래 남는지

The TrackCaffeine decay model uses first-order elimination with a population-average half-life of 5.7 hours (definition: elimination half-life is the time it takes for the body to remove half of the substance from the bloodstream; model parameter: 5.7 hours; source: Drake et al. 2013 and pharmacokinetic literature summary).

With a 70 mg dose the remaining caffeine after a given number of hours is calculated as remaining = 70 mg × 0.5^(hours / 5.7) (formula stated and used here; source: TrackCaffeine decay model parameter, 5.7-hour half-life, cited to Drake et al. 2013). Applying that formula gives: after 3 h: remaining = 70 mg × 0.5^(3/5.7) = 70 mg × 0.6947 ≈ 48.6 mg (rounded ≈ 49 mg; source: TrackCaffeine decay model); after 6 h: remaining = 70 mg × 0.5^(6/5.7) = 70 mg × 0.4827 ≈ 33.8 mg (rounded ≈ 34 mg; source: TrackCaffeine decay model); after 9 h: remaining = 70 mg × 0.5^(9/5.7) = 70 mg × 0.3349 ≈ 23.4 mg (rounded ≈ 23 mg; source: TrackCaffeine decay model); after 12 h: remaining = 70 mg × 0.5^(12/5.7) = 70 mg × 0.2325 ≈ 16.3 mg (rounded ≈ 16 mg; source: TrackCaffeine decay model).

Example timing: if this cup is consumed at 15:00, roughly 8 hours later at 23:00 the model predicts remaining = 70 mg × 0.5^(8/5.7) = 70 mg × 0.3779 ≈ 26.5 mg (rounded ≈ 26 mg), which is the amount still active at that time (source: TrackCaffeine decay model and Drake et al. 2013).

The commonly cited safe daily upper limit for healthy adults is 400 mg per day (explicit guidance: 400 mg/day) and this 70 mg matcha cup represents 18% of that 400 mg figure (calculation: 70 mg ÷ 400 mg = 0.175 → 17.5% rounded to 18%; source and guidance: FDA 400 mg/day for healthy adults, linked: https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much [source: FDA]).

Pregnancy and some special populations need lower intake: the European Food Safety Authority (EFSA) recommends a maximum of 200 mg/day during pregnancy (pregnancy guidance: 200 mg/day; source: EFSA Scientific Opinion on the Safety of Caffeine, 2015). For adolescents and people who experience sensitivity or arrhythmia, even lower intakes or medical guidance may be appropriate (clinical precaution: consult a clinician; source: Mayo Clinic).

For sleep timing, experimental evidence shows that a large 400 mg dose taken 6 hours before bedtime can reduce total sleep time by about an hour in some people (sleep effect: 400 mg causing >1-hour sleep cost at 6 hours pre-bed; source: Drake et al. 2013). Using that study as context, a single 70 mg matcha at 17:00 is a much smaller load but still leaves non-negligible caffeine at 23:00 (8 hours later the model predicts ≈ 26 mg remaining; source: TrackCaffeine decay model and Drake et al. 2013). To estimate the latest reasonable time for your last cup before bed, try the internal tool: latest cup before bedtime (internal tool).

Within the tea category, a 70 mg matcha cup sits above common brewed green tea at 28 mg per 240 ml and above black/earl/English Breakfast teas around 47–50 mg per 240 ml, but below yerba mate at 85 mg per 240 ml (numbers and comparisons from the TrackCaffeine dataset; source: TrackCaffeine dataset /dataset/ and linked pages such as Green tea, 28 mg). Those values reflect different ways the beverages are made: matcha uses powdered leaf suspended in water, which typically concentrates caffeine relative to an infused steep of whole leaves (mechanism and dataset values; source: USDA FoodData Central).

Against coffee, this single matcha cup at 70 mg is about 0.7 times a 240 ml drip coffee at 96 mg, so it delivers a meaningful but smaller caffeine dose than a standard brewed coffee (70 mg vs 96 mg; source: TrackCaffeine dataset /dataset/). If the goal is a caffeine boost comparable to drip coffee, two similar matcha servings would exceed one 240 ml drip cup (simple arithmetic of 2 × 70 mg = 140 mg vs 96 mg; source: TrackCaffeine dataset).

Matcha (1 tsp)의 수치를 바꾸는 요인

The stated figure, 70 mg per 240 ml for Matcha (1 tsp), assumes one level teaspoon of powder prepared as a single 240 ml serving (source: USDA FoodData Central as represented in the TrackCaffeine dataset /dataset/). Actual caffeine in any cup of matcha varies because the powder itself concentrates the whole leaf: tea leaf cultivar, leaf part, and how finely it is ground all shift caffeine content (mechanism: whole-leaf ingestion concentrates leaf compounds; source: USDA FoodData Central and general tea chemistry summaries).

Preparation matters: using more than 1 teaspoon, whisking with additional powder, or making a double-strength serving raises the milligram amount in direct proportion to the weight of powder used (principle: mg of caffeine scales with grams of powder; source: TrackCaffeine dataset /dataset/). Similarly, using less powder or diluting the drink lowers the mg per cup in proportion, so the single 70 mg figure is an average for the specified 1 teaspoon measure (source: USDA FoodData Central).

There is also product-level variation: ceremonial-grade matcha and culinary-grade matcha can come from different harvests and leaf positions, and commercial blends may combine leaves with fillers, which changes concentration without changing the serving volume (reason: composition and manufacturing differences; source: USDA FoodData Central and tea industry analyses).

• Compare nearby category values from the dataset: Green tea (240 ml) — 28 mg; Yerba mate (240 ml) — 85 mg; White tea (240 ml) — 16 mg (values and links: Green tea, 28 mg and Yerba mate, 85 mg; source: TrackCaffeine dataset /dataset/).

Decaffeinated or specially processed matcha exists, but the listed 70 mg applies only to a conventional, caffeinated serving; if a product is sold as decaf, rely on the manufacturer labelling or independent lab results rather than this value (guidance: check labels or lab reports; source: USDA FoodData Central).

이 수치의 출처

The 70 mg value shown on this page comes from USDA FoodData Central as represented in the TrackCaffeine open dataset and is presented alongside other entries in the dataset (primary data source: USDA FoodData Central; dataset listing: /dataset/). Published values disagree because laboratories use different samples, different leaf lots, different preparation protocols (powder weight, dilution, steep time), and some manufacturers report measured lab values while others provide averaged or rounded estimates (reasons for variation; source: USDA FoodData Central and general laboratory practice overviews).

We will update this value if new primary laboratory analyses or manufacturer-supplied lab reports appear in FoodData Central or in peer-reviewed publications, or if a reliable manufacturer specifies a different mg for a named product (update triggers: new USDA FDC entries, manufacturer lab certificates, or peer-reviewed studies; source: USDA FoodData Central and TrackCaffeine dataset policies /dataset/).

요약

Bottom line: one 240 ml serving of Matcha (1 tsp) contains 70 mg of caffeine (source: USDA FoodData Central). That equals about 29.17 mg per 100 ml (calculation: 70 mg ÷ 240 ml × 100 ml = 29.17 mg, 100 ml당; source: USDA FoodData Central), is roughly 0.7× a 240 ml drip coffee at 96 mg (comparison: 70 mg vs 96 mg; source: TrackCaffeine dataset /dataset/), and uses about 18% of the FDA-referenced 400 mg daily guidance (calculation and guidance: 70 mg ÷ 400 mg = 17.5% → 18%; source: FDA).