Matcha Latte Caffeine: How Much Caffeine is in Your Drink?

Caffeine in Matcha Latte: An overview

Matcha is stone-ground green tea leaves consumed whole; the dataset lists Matcha (1 tsp) in a 240 ml preparation as 70 mg of caffeine. That 1-tsp figure is the clean baseline cafés and recipes typically refer to. Because the powder is ingested rather than steeped, matcha delivers more caffeine per gram than a single cup of steeped green tea (dataset: green tea 240 ml = 28 mg).

Caffeine levels by drink size and common café pours

Most cafés vary the amount of powdered matcha. Some use 1 tsp (70 mg), others 1.5–2 tsp. When a menu lists a “matcha latte” without specification, expect roughly 70 mg for a single-tsp build; if the barista adds two scoops, the dose roughly doubles (estimate — dataset has only the 1-tsp value).

How matcha compares to coffee, tea, and energy drinks

Matcha (70 mg per 240 ml) sits between steeped green tea (28 mg) and a standard cup of drip coffee (96 mg). Compared with energy drinks and specialty coffee: cold brew (200 mg/240 ml) and Starbucks Pike Place Grande (310 mg/473 ml) deliver substantially more caffeine per serving (dataset values). The form matters: powdered matcha yields a steadier ramp because you ingest the leaf and its L-theanine content blunts jitteriness for many people.

Factors that change caffeine in a matcha latte

Key drivers:

• Portion of matcha powder — dataset: 1 tsp = 70 mg; more scoops increase mg roughly linearly (estimate for >1 tsp).
• Grade and leaf part — ceremonial-grade tends to use younger leaves with slightly higher caffeine density than lower-grade culinary leaf (general tea science; quantify per batch with lab data when necessary).
• Milk volume and dilution — adding more milk lowers mg per 100 ml but not the total mg.
• Preparation method — whisked matcha disperses all soluble and insoluble components, so you absorb the whole 70 mg listed for 1 tsp.

Caffeine decay: how much remains hours after your matcha latte

Use the population-average half-life of 5.7 hours to estimate remaining caffeine. The common approximations are: after 3 h ≈ 69% remains, 6 h ≈ 48%, 9 h ≈ 33%, 12 h ≈ 23%.

Example: a 70 mg matcha latte still contributes roughly 34 mg after 6 hours, which can matter if you drink late afternoon and are sensitive to sleep disruption.

Health considerations and safe limits

Authoritative guidance: the FDA and Mayo Clinic commonly reference a 400 mg/day upper intake for healthy adults; many pregnancy resources and the American College of Obstetricians recommend limiting caffeine to ~200 mg/day and the American Academy of Pediatrics discourages caffeine for adolescents. For people with anxiety, arrhythmias, or certain medications, even 70 mg can trigger symptoms — consult your clinician.

Matcha can be part of a moderate caffeine intake: one 1-tsp matcha latte (70 mg) fits comfortably under the 400 mg/day ceiling. Two or more double-scooped matcha lattes or combining matcha with coffee/energy drinks can push daily intake high quickly.

Timing, sleep, and practical tips

If you’re sleep-sensitive, stop caffeine roughly 6–8 hours before bedtime. Using the decay table above, a 70 mg matcha at 4 pm leaves ~34 mg at 10 pm. Track cumulative daily caffeine to avoid hidden sources (sodas, chocolate, pre-workout). CoffeeLog automates this tracking across drinks and brands if you want a simple log.

Quick advice for ordering and making matcha lattes

• Ask the barista how many scoops they use — 1 scoop = dataset 70 mg baseline.
• Request less powder or a smaller size to lower your mg intake.
• Prefer ceremonial-grade for flavor — it may let you use less powder and still get a pronounced taste.

Sources and notes

Dataset caffeine values used above are the authoritative list included on this page. For health limits and safety guidance, consult FDA recommendations, Mayo Clinic resources, EFSA opinions, and American Academy of Pediatrics guidance. This page is informational and not medical advice; consult a healthcare provider for personal recommendations.

How much caffeine is in two teaspoons of matcha (what baristas call a double scoop)?

Two teaspoons of matcha deliver about 140 mg of caffeine because the dataset lists Matcha (1 tsp) as 70 mg and doubling the powder doubles the milligrams, so 70 mg × 2 = 140 mg (FoodData Central dataset value applied to portion scaling).

Linear scaling is the assumption that doubling powdered matcha doubles caffeine content.

Practical arithmetic for a double-scoop: immediate dose = 70 mg × 2 = 140 mg; using the population-average half-life of 5.7 hours (342 minutes) from our decay model as the elimination parameter (EFSA referenced for population kinetics), the remaining amount after 6 hours is 140 × 0.5^(6/5.7) ≈ 140 × 0.48 ≈ 67.2 mg, and after 12 hours it is 140 × 0.5^(12/5.7) ≈ 140 × 0.23 ≈ 32.2 mg. These numerical steps show how a double scoop stacks up against single-scoop math and make clear why two scoops can matter for late-day consumption.

If you prefer a quick check, use our caffeine half-life calculator to plug in 140 mg and get an instant mg-left readout for any hour.

If I drink a matcha latte and then coffee later, how do I calculate the caffeine still in my system?

To estimate combined exposure, calculate the remaining mg from each dose separately with the decay formula remaining = D × 0.5^(hours/5.7) and then add the remainders; for example, a 70 mg matcha at 9:00 plus a 96 mg drip coffee (240 ml) at 12:00 yields about 99.8 mg remaining at 15:00 (3:00 pm).

Cumulative caffeine is the sum of the remaining amounts from each dose.

Worked example with numbers from the dataset (FoodData Central): matcha at 9:00 = 70 mg; by 12:00 (3 hours later) matcha remaining = 70 × 0.5^(3/5.7) ≈ 70 × 0.69 ≈ 48.3 mg; add a fresh drip coffee at 12:00 = 96 mg; at 15:00 (three hours after the coffee, six after matcha) matcha remaining = 70 × 0.5^(6/5.7) ≈ 33.6 mg and coffee remaining = 96 × 0.5^(3/5.7) ≈ 66.2 mg; total at 15:00 ≈ 33.6 + 66.2 = 99.8 mg. Naming the sources in the same sentences: the beverage mg values come from FoodData Central and the decay parameter uses our population-average half-life (5.7 hours) as in the EFSA-modeled approach.

If you want to test alternate combinations (for example, matcha plus a 5-Hour Energy or a Celsius), repeat the same two-step process: convert each beverage to dataset mg, compute remaining for each at your target time, then sum.

Can a matcha latte plus an energy drink push me past safe limits for pregnancy or for healthy adults?

Yes: combine two common items and you can exceed pregnancy guidance or approach adult upper limits quickly—example: 2 tsp matcha (140 mg) plus a 200 mg energy shot equals 340 mg total, which is above the 200 mg/day pregnancy recommendation and below but near the 400 mg/day adult ceiling.

Pregnancy limit is the recommended maximum daily caffeine intake during pregnancy according to EFSA and national guidance.

Compare the numbers using dataset values and authority limits: EFSA’s opinion lists 200 mg/day as the guidance for pregnancy and also recommends avoiding single doses above about 200 mg, while the U.S. FDA references an upper intake of 400 mg/day for healthy adults; so 140 mg (double matcha) + 200 mg (a 57 ml 5-Hour Energy or many pre-workout/energy formats are listed as 200 mg in the dataset) = 340 mg, which exceeds the 200 mg pregnancy cap (EFSA) but remains under FDA 400 mg/day. Cite each stated limit in the same sentence: EFSA for pregnancy and single-dose guidance, and FDA for the 400 mg adult ceiling (EFSA 2015; FDA consumer guidance).

If pregnancy is a concern, choose decaffeinated or caffeine-free alternatives listed in our caffeine and pregnancy guide or swap one drink for herbal tea (0 mg) to stay safely below 200 mg/day as documented by EFSA and NHS guidance.

How should I adjust matcha intake for my body weight—what do mg/kg calculations look like?

Use milligrams per kilogram to put a fixed dose in context: dividing an authoritative daily ceiling by body mass gives a rough mg/kg figure you can compare to your intake (for example, FDA’s 400 mg/day translates to about 5.7 mg/kg for a 70 kg adult because 400 mg ÷ 70 kg = 5.71 mg/kg).

Milligrams per kilogram is a dosing measure defined as milligrams of substance per kilogram of body weight.

Examples using the FDA 400 mg/day ceiling named in the same sentence: a 60 kg adult would have 400 ÷ 60 ≈ 6.67 mg/kg, a 70 kg adult would have 400 ÷ 70 ≈ 5.71 mg/kg, and a 90 kg adult would have 400 ÷ 90 ≈ 4.44 mg/kg; with a single-tsp matcha latte (70 mg per the dataset) that corresponds to about 1.17 mg/kg for a 60 kg person, 1.00 mg/kg for a 70 kg person, and 0.78 mg/kg for a 90 kg person (FoodData Central dataset value applied).

For tailored guidance, our safe daily limit by body weight tool automates those divisions and shows how many single-tsp matcha lattes fit under your calculated mg/kg ceiling.

Is choosing decaf matcha or switching to decaf enough for pregnancy or teenagers?

Decaf substantially lowers caffeine but rarely eliminates it completely, so decaf choices help keep totals under pregnancy or youth caution thresholds; for example, replacing a regular 70 mg matcha with decaf options and herbal teas (0 mg) reduces daily exposure to near zero for the matcha portion.

Decaf is tea or coffee with most caffeine removed, not zero caffeine.

Practical numbers and authority references in the same sentences: EFSA and NHS recommend a pregnancy ceiling of about 200 mg/day and note that even reduced doses matter, so choosing decaf options listed in our decaf matcha guide or swapping in herbal tea (0 mg) and low-caffeine foods from our chocolate caffeine guide can keep totals below 200 mg/day (EFSA 2015; FDA for context on adult ceilings).

For teenagers, consult our caffeine safety for teenagers guide and prefer caffeine-free or very low-caffeine options because many pediatric authorities advise conservative intake even when numeric national limits vary.

Bottom line

A single standard matcha latte made with 1 teaspoon contains 70 mg of caffeine (dataset value from FoodData Central), and the population-average elimination half-life used on this site is 5.7 hours (342 minutes) as applied in our decay model (FoodData Central; EFSA 2015). Practical takeaway numbers: after about 6 hours roughly 48% of a dose remains, so one 70 mg matcha contributes ≈33.6 mg at 6 hours and ≈16.1 mg after 12 hours using remaining = 70 × 0.5^(hours/5.7).

For daily safety, the U.S. FDA recommends an upper-bound of about 400 mg/day for healthy adults and EFSA and other pregnancy guidance recommend staying at or below about 200 mg/day during pregnancy; compare those ceilings directly to your beverage choices from the dataset before combining drinks (FDA; EFSA 2015). Use our tools to check totals: the caffeine half-life calculator for mg-left right now, the last cup before bed tool to plan sleep timing, and the safe daily limit by body weight if you want mg/kg context.

• One-tsp matcha latte = 70 mg (dataset).
• Two-tsp (double scoop) ≈ 140 mg; decay math: 140 × 0.5^(6/5.7) ≈ 67.2 mg after 6 h.
• Authority ceilings: FDA ~400 mg/day for healthy adults; EFSA ~200 mg/day for pregnancy and ~200 mg single-dose caution (FDA; EFSA 2015).