Does Matcha Have Caffeine? A Comprehensive Guide

Yes — a standard 1 teaspoon (240 ml prepared) serving of matcha contains 70 mg of caffeine.

• 70 mg: the dataset value for matcha (1 tsp, 240 ml).
• Matcha has less caffeine than a 240 ml cup of drip coffee (96 mg) but more than typical green tea (28 mg).
• After 6 hours roughly ~34 mg remains from a 70 mg matcha dose (population half-life ≈ 5.7 h).
• FDA safe-limit guidance: 400 mg/day for healthy adults; pregnancy guidance ≈ 200 mg/day.

Caffeine levels in matcha tea

The dataset lists Matcha (1 tsp) prepared to 240 ml as containing 70 mg of caffeine. That figure is useful as a standard benchmark: the powder is the whole tea leaf, so caffeine is present in every scoop you whisk into water. If you use more than 1 teaspoon of powder, caffeine scales roughly proportionally; halve the powder and the caffeine halves.

Matcha vs coffee and other drinks

Matcha sits between brewed green tea and regular coffee on a per-cup basis. Because serving sizes and extraction differ, compare on the same volume (here many dataset drinks use 240 ml or close equivalents):

Note: espresso delivers a lot of caffeine in a small volume (single shot = 63 mg), while cold brew concentrates more caffeine per 240 ml. Matcha's 70 mg occupies a middle ground: stronger than most brewed teas, milder than many coffees by volume.

How matcha's caffeine differs biologically

Matcha is powdered whole-leaf green tea; you ingest leaf solids (caffeine, catechins, and L-theanine) rather than just an infusion. The combination of caffeine plus L-theanine is often associated in clinical commentary (Mayo Clinic, small trials) with a calmer, more focused alertness compared with coffee's rapid spike and fall. The dataset doesn't include L-theanine values, but the mechanism—slower perceived onset and smoother decline—comes from consuming the whole leaf.

Decay math: how much remains over time

Use the population-average caffeine half-life of 5.7 hours to estimate how matcha's 70 mg declines:

These are population averages. Individual metabolism, medications, liver function, age, and smoking status alter half-life. For sleep planning, many people avoid caffeine 6–8 hours before bedtime to reduce sleep disruption.

Brewing, serving and controlling caffeine

Powder amount

The dataset anchor is 1 teaspoon → 70 mg. If you use 2 teaspoons, expect roughly 140 mg; half a teaspoon would be ~35 mg. We recommend measuring scoops rather than “eyeballing” to control intake reliably.

Water volume and dilution

Water volume doesn't change total caffeine when the same powder is used; it changes concentration (mg per 100 ml). A larger drink dilutes the caffeine but does not reduce the milligrams consumed unless you use less powder.

Grade and leaf source

Leaf cultivar, shading, harvest time and processing affect caffeine per gram. The dataset lists one standard value; different brands and ceremonial vs. culinary grades can vary—track exact servings with an app like CoffeeLog to know total daily intake.

Health, safety and timing

Authoritative guidance: the FDA cites about 400 mg/day as a safe upper limit for most healthy adults; many pregnancy guidance sources and EFSA recommend limiting caffeine in pregnancy to about 200 mg/day. The American Academy of Pediatrics discourages caffeine and energy drink use by adolescents. Symptoms of excess intake include jitteriness, rapid heartbeat, insomnia, and gastrointestinal upset. For suspected overdose or severe symptoms, seek medical attention.

Practical next steps

If you drink matcha regularly, log each prepared serving (use the dataset value of 70 mg per 1 tsp) to keep daily totals below recommended limits. CoffeeLog and other trackers let you record scoop counts and time of consumption to see cumulative mg and predicted remaining caffeine at bedtime.

Caveat

This page is informational, not medical advice. If you are pregnant, breastfeeding, taking medication, or have cardiovascular or anxiety conditions, consult your healthcare provider about safe caffeine limits.

How do I calculate the caffeine in a matcha latte with an added espresso shot?

Adding a single espresso shot to a 1-teaspoon matcha gives a pre-elimination total of 133 mg: the dataset lists Matcha (1 tsp) as 70 mg and Espresso (single) as 63 mg. Using the decay model's population-average half-life of 5.7 hours, about 48% remains at 6 hours, so 133 × 0.48 ≈ 64 mg would be left after six hours.

Cumulative dose is the total milligrams of caffeine you've consumed that have not yet been eliminated. To break that down: after 3 hours ~69% remains → 133 × 0.69 ≈ 92 mg; after 9 hours ~33% remains → 133 × 0.33 ≈ 44 mg; after 12 hours ~23% remains → 133 × 0.23 ≈ 31 mg. Use the dataset values above and the arithmetic shown to plan timing for a matcha latte with an extra shot; for recipe-specific guidance see the site's Matcha Latte guide and the Espresso breakdown for shot sizes.

If I drink matcha at 9:00 am and again at 3:00 pm, how much caffeine remains at 11:00 pm?

If you take two 1-teaspoon matchas (70 mg each, per the dataset) the remaining caffeine at 23:00 is the sum of each dose after first-order elimination: 70 × 0.5^(14/5.7) from the 9:00 dose plus 70 × 0.5^(8/5.7) from the 15:00 dose, which equals roughly 13 mg + 27 mg ≈ 39 mg. The dataset lists Matcha (1 tsp) as 70 mg, and the page's decay model uses a half-life of 5.7 hours for these calculations.

First-order elimination is a process where a fixed fraction of a substance is removed per unit time. Doing the math explicitly: 14/5.7 ≈ 2.456 so 70 × 0.5^2.456 ≈ 70 × 0.182 ≈ 12.7 mg; 8/5.7 ≈ 1.404 so 70 × 0.5^1.404 ≈ 70 × 0.378 ≈ 26.5 mg, for a total ≈ 39.2 mg. If you want to skip manual math, use our caffeine half-life calculator or check the latest cup before bed tool to see recommended cutoffs; remember Drake et al. (2013) found even 400 mg taken 6 hours before bedtime reduced sleep by more than an hour, Drake et al., 2013.

How much caffeine is in a two-teaspoon matcha serving and how quickly will it decline?

A two-teaspoon serving of matcha delivers about 140 mg because the dataset's benchmark is 70 mg per 1 teaspoon and caffeine scales roughly linearly with powder. Using the decay model's half-life of 5.7 hours, after one half-life (5.7 hours) the 140 mg will be about 70 mg; using the rounded percentages from the decay model gives 3 h ≈ 69% (≈97 mg), 6 h ≈ 48% (≈67 mg), 9 h ≈ 33% (≈46 mg), 12 h ≈ 23% (≈32 mg).

Serving multiplier is the numeric factor you multiply the benchmark serving by to obtain a different serving's caffeine value. For planning: 2 tsp → 140 mg (dataset), so 140 × 0.69 ≈ 97 mg at 3 hours; 140 × 0.48 ≈ 67 mg at 6 hours; 140 × 0.33 ≈ 46 mg at 9 hours; 140 × 0.23 ≈ 32 mg at 12 hours. If you often take larger servings and want to compare against daily safety thresholds, try the site's safe daily limit tool and the Matcha Caffeine guide for serving control tips.

How many chocolate bars equal one 1-teaspoon matcha in caffeine?

One 1-teaspoon matcha (the dataset lists 70 mg) contains about the same caffeine as roughly 2.3 50 g dark chocolate bars (dataset: 50 g dark chocolate = 30 mg) or about 7 50 g milk chocolate bars (dataset: 50 g milk chocolate = 10 mg). The dataset lists Red Bull (250 ml) at 80 mg and drip coffee (240 ml) at 96 mg, so matcha is less than those but substantially more than a single milk-chocolate serving.

Caffeine equivalent is the count of another item whose summed milligrams match the reference caffeine amount. Math shown: 70 / 30 ≈ 2.33 dark bars; 70 / 10 = 7 milk bars. For more on chocolate-sourced caffeine and how to count snack contributions toward daily totals see the site's Chocolate and Caffeine guide and the Matcha Caffeine overview.

Bottom line

One standard 1-teaspoon serving of prepared matcha contains 70 mg of caffeine (the dataset lists Matcha (1 tsp) = 70 mg). Using the page's decay model with a population-average half-life of 5.7 hours, a single 70 mg dose falls to about 48% (~34 mg) after 6 hours and to ~23% (~16 mg) after 12 hours; apply the formula remaining = D × 0.5^(hours/5.7) to any dose and interval.

Practical implications: two teaspoons → 140 mg (so expect ~67 mg left at 6 hours), and adding a single espresso shot (dataset: 63 mg) to a 1 tsp matcha gives 133 mg total (≈64 mg left at 6 hours). Respect established safety thresholds: the U.S. FDA cites about 400 mg/day for most healthy adults (FDA), and studies such as Drake et al. (2013) demonstrate that large doses several hours before bedtime can still meaningfully shorten sleep (Drake et al., 2013); use the site's calculators—half-life calculator and last cup before bed—or read the Daily Caffeine Intake guide to plan servings so you stay within safe limits.

How quickly does matcha's caffeine fall below 20 mg?

A single 1-teaspoon matcha dose (70 mg, dataset) falls below 20 mg after about 10.3 hours using the page's decay model (population-average half-life 5.7 hours). After 9 hours about 23 mg remains and after 12 hours about 16 mg, so the crossover is between 9 and 12 hours.

Threshold level is a chosen residual caffeine amount (mg) used to plan sleep or sensitivity cutoffs. Do the math directly: 70 × 0.5^(t/5.7) = 20 → 0.5^(t/5.7) = 0.2857 → t/5.7 ≈ 1.807 → t ≈ 1.807 × 5.7 ≈ 10.31 hours, so a 70 mg matcha leaves <20 mg after ≈10.3 h.

How many teaspoons of matcha hit the EFSA pregnancy limit of 200 mg?

Three teaspoons of matcha (3 × 70 mg = 210 mg) exceed the EFSA pregnancy guidance of 200 mg/day, while two teaspoons (2 × 70 mg = 140 mg) stay below that limit. EFSA's 2015 scientific opinion sets the pregnancy guidance at 200 mg/day (EFSA, 2015).

Pregnancy limit is 200 mg/day according to EFSA. Practical arithmetic: 200 ÷ 70 ≈ 2.86 teaspoons, so rounding down to 2 tsp (140 mg) keeps you safely under the 200 mg/day recommendation, whereas 3 tsp (210 mg) would exceed it.

If I combine matcha with a 200 mg pre-workout, what is the immediate total and how much remains at 6 hours?

A 1-teaspoon matcha (70 mg) plus a pre-workout scoop (200 mg, dataset) gives an immediate total of 270 mg and about 130 mg remaining after 6 hours using the page's decay model (5.7 h half-life). At 3 hours ~69% remains → ~186 mg; at 12 hours ~23% remains → ~62 mg.

Pre-workout is a supplement listed in the dataset as 200 mg caffeine per scoop. Arithmetic shown: immediate total = 70 + 200 = 270 mg; after 6 h ≈ 270 × 0.48 ≈ 129.6 mg (rounded ≈130 mg); after 3 h ≈ 270 × 0.69 ≈ 186.3 mg; after 12 h ≈ 270 × 0.23 ≈ 62.1 mg. Use the caffeine half-life calculator to plug in your timings.

How should I time a mid-afternoon matcha to reduce sleep disruption?

If you want minimal sleep impact, avoid taking a 70 mg matcha within roughly 6–8 hours of bedtime; a 6-hour gap leaves ~34 mg, while an 8-hour gap leaves ~27 mg using the page's decay model (5.7 h half-life). If you are highly sensitive, aim for 8–10 hours before bed because 70 mg drops below 20 mg at ≈10.3 hours.

Sleep window is the interval before bedtime when caffeine can disrupt sleep. Reference point: Drake et al. (2013) found a 400 mg dose taken 6 hours before bedtime reduced objective sleep by over an hour (Drake et al., 2013), so scale that sleep-risk logic to your actual mg and check the latest cup before bed tool for personalized cutoffs.

Can I mix matcha and a Red Bull and still stay under the FDA 400 mg/day limit?

Yes: one 1-teaspoon matcha (70 mg) plus a 250 ml Red Bull (80 mg, dataset) totals 150 mg, well under the FDA's 400 mg/day guidance for healthy adults. Doubling to two matchas + one Red Bull = 140 + 80 = 220 mg, still under the FDA limit but closer to it.

Daily limit is 400 mg/day according to the FDA (FDA). Example arithmetic: 70 + 80 = 150 mg immediate; after 6 h ≈ 150 × 0.48 ≈ 72 mg remaining. If you mix more beverages, use the site's safe daily limit and caffeine dosage guide to compare totals and plan timing.

Bottom line

Yes—matcha contains caffeine: the dataset's standard 1 teaspoon prepared to 240 ml is 70 mg of caffeine. Using the page's decay model (population-average half-life 5.7 hours), that 70 mg falls to ≈48 mg at 3 hours, ≈34 mg at 6 hours, ≈23 mg at 9 hours and ≈16 mg at 12 hours (explicit arithmetic shown: 70 × 0.5^(6/5.7) ≈ 34 mg).

Practical anchors: the FDA's recommended limit for healthy adults is 400 mg/day (FDA), and EFSA advises about 200 mg/day in pregnancy (EFSA, 2015). Two teaspoons of matcha = 140 mg (below pregnancy advice); three teaspoons = 210 mg (above EFSA pregnancy guidance). For sleep planning, a single 70 mg matcha drops below 20 mg after ≈10.3 hours, and Drake et al. (2013) showed that even 400 mg taken 6 hours before bed can cut sleep time, so use a 6–10 hour buffer depending on sensitivity (Drake et al., 2013).

Want to compare combos or plan your last cup? Use the site's tools and guides: the half-life calculator, last-cup tool, safe daily limit, and the Matcha Latte guide for recipe specifics; for snacks see our caffeine in chocolate guide to factor treats into daily totals.