Caffeine: Americano vs Espresso, Which Has More?
For the same number of shots, an americano holds exactly the same caffeine as an espresso. An americano is simply one or two espresso shots topped up with hot water, and water adds no caffeine: it only adds volume. One shot is about 63 mg of caffeine, a double about 125 mg, whether the drink is served tight (espresso) or diluted (americano).
- The hot water added to an americano carries no caffeine: it dilutes, it adds nothing
- Single espresso: about 63 mg of caffeine (USDA reference, for a 30 to 50 ml shot)
- Single-shot americano: about 63 mg; double-shot americano: about 125 mg
- What changes between espresso and americano is concentration (mg/ml), not the total dose
- A lungo extracts a little more caffeine (longer extraction); a long black keeps the caffeine of its shots
Why water changes nothing about caffeine
It is the classic trick question at the counter: instinct tells you that a big americano, larger in the cup, must hold more caffeine than a small espresso. The truth runs the other way. All the caffeine in a coffee drink comes from the ground beans that pressurised water passes through, in other words from the espresso shots. The hot water poured in afterwards to make an americano is neutral: it does not carry a single molecule of caffeine.
The direct consequence is that an americano contains the same caffeine as the espresso shots it is built on. An americano pulled on a single shot inherits roughly 63 mg of caffeine from that shot. A double americano, two shots, climbs to about 125 mg. The volume of water, whether you add 90 ml or 200 ml, does not move that figure by a single milligram. Diluting changes the volume in the cup and softens the taste, never the dose you swallow.
The most widely cited reference is the USDA food database, which lists about 63 mg of caffeine for an espresso of roughly 30 to 50 ml. Real figures vary with the coffee variety (robusta carries far more caffeine than arabica), the dose of grounds, the grind fineness and the extraction time, but the order of magnitude for a shot sits around 60 to 70 mg.
Caffeine comparison table by drink
The values below are orders of magnitude for an arabica coffee, starting from the reference of about 63 mg per shot. They are meant to compare drinks against each other, not to give an absolute number for your exact cup.
| Drink | Make-up | Typical volume | Total caffeine (estimate) |
|---|---|---|---|
| Single espresso | 1 shot | 30 to 40 ml | ~63 mg |
| Double espresso | 2 shots | 60 to 80 ml | ~125 mg |
| Americano (1 shot) | 1 shot + hot water | 120 to 180 ml | ~63 mg |
| Americano (2 shots) | 2 shots + hot water | 180 to 250 ml | ~125 mg |
| Lungo | same dose, longer extraction | 90 to 120 ml | ~80 to 110 mg |
| Long black | hot water first, then 1 to 2 shots poured over | 120 to 180 ml | ~63 mg (1 shot) to ~125 mg (2 shots) |
Reading the table: for the same shots, espresso, americano and long black are equivalent in caffeine. Only the lungo stands slightly apart, because it changes the extraction recipe itself.
Concentration is not total dose
The most stubborn confusion comes from blending two separate ideas. The first is total caffeine per cup, expressed in milligrams: it drives the stimulant effect, and it is the figure that stays identical between an espresso and an americano at equal shots. The second is concentration, expressed in milligrams per millilitre: it drives the sensation of power on the palate.
A single espresso concentrates its 63 mg into 30 to 40 ml, a very high concentration of around 1.6 to 2 mg per millilitre. Turn the same shot into a 150 ml americano and it drops to about 0.4 mg per millilitre. The drink feels far softer, almost light, while your body receives the same caffeine load. That is why an americano drinker can feel they are taking in less caffeine than an espresso lover, when at equal shots they absorb just as much.
Lungo and long black: the useful nuances
The lungo is the only case where caffeine genuinely shifts compared with an espresso. You keep the same dose of grounds but let more water pass through the coffee over a longer extraction. That extra water keeps dissolving caffeine, so a lungo pulls a little more than a normal espresso, often in the region of 80 to 110 mg. The rise stays modest because most of the caffeine comes out in the first seconds of the pull: stretching the extraction mainly brings bitterness and less flattering compounds before it brings much more caffeine.
The long black sits very close to the americano. It is a preparation popular in Australia and New Zealand where you first pour hot water into the cup, then the espresso shots on top. The reversed order preserves the crema better and gives a more expressive nose, but on the caffeine side nothing changes: the dose remains that of the shots, about 63 mg for one and 125 mg for two. Americano and long black differ only in texture and aroma, not in caffeine.
Frequently asked questions
Does an americano have more caffeine than an espresso?
No, not for the same number of shots. A single-shot americano holds about 63 mg of caffeine, the same dose as a single espresso. The added hot water carries no caffeine, it only adds volume. A double-shot americano rises to about 125 mg, just like a double espresso.
Why does an espresso feel stronger than an americano?
Because perceived strength comes from concentration, not total caffeine. An espresso packs its dose into 30 to 40 ml, giving a high concentration per millilitre. Diluted into an americano, the taste softens and the volume grows, but the amount of caffeine received stays identical at equal shots.
Does a lungo contain more caffeine than an espresso?
Slightly more. A lungo lets more water pass through the same dose of grounds over a longer extraction, dissolving a little more caffeine, usually around 80 to 110 mg. The rise stays modest because most caffeine is extracted in the first seconds of the pull.
Americano or long black: which has more caffeine?
Neither, at equal shots. The only difference is the order of preparation: water then espresso for the long black, espresso then water for the americano. The caffeine stays that of the shots, about 63 mg for one and 125 mg for two. The order changes the crema and aroma, not the dose.
Further reading: Caffeine compared: espresso, filter and cold brew · Specialty coffee FAQ · All guides