Wondering how much caffeine in a lungo ends up in your cup? The short version is that the caffeine in a lungo usually lands somewhere around 70 to 90 mg per shot — a little more than a standard single espresso. A lungo (Italian for "long") is pulled with more water through the same puck of grounds, so the longer flow tends to draw out a bit more caffeine along with more bitter compounds. Treat every figure here as a rough estimate rather than a precise lab reading, because real cups vary a lot.
How much caffeine in a lungo? The short answer
For a typical single lungo pulled at a cafe or on a home machine, expect very roughly 70 to 90 mg of caffeine. That is a modest step up from a standard single shot, and it happens for one main reason: more water passes through the same dose of coffee, extracting a little extra of what the grounds have to give.
If you want the full picture of what the drink actually is — how it differs from a ristretto or a normal shot, and how baristas pull it — see our guide to what a lungo is. Here we are focused only on the caffeine. And keep in mind these numbers are ballpark: the beans, the dose, the machine and the length of the pull all move the needle, so two lungos from two cafes can land noticeably apart.
Why a lungo has a touch more caffeine than a single espresso
Does a lungo have more caffeine than espresso? Usually yes, though the gap is smaller than most people expect. Caffeine is highly soluble in hot water, so a large share of it dissolves early in the shot. When you keep the pump running to make a lungo — often pulling roughly double the volume of a normal shot — that extra water keeps flowing through the same puck and picks up a little more caffeine that a shorter pull would have left behind.
The catch is that the easy-to-extract caffeine comes out first, so the back half of a long pull adds volume and bitterness faster than it adds caffeine. That is why a lungo tends to be only a touch higher, not double. For the baseline single-shot number and a closer look at how espresso extraction works, see caffeine in espresso. As always, the exact figure depends on the specifics below, so treat this as a general tendency rather than a fixed rule.
How the caffeine in a lungo compares
Here is a rough side-by-side to put the caffeine in a lungo in context. All values are approximate, per typical serving, and shift with beans and preparation.
| Drink | Approx caffeine per serving |
|---|---|
| Single espresso | ~60 to 80 mg |
| Lungo (single) | ~70 to 90 mg |
| Double espresso (doppio) | ~120 to 160 mg |
| Brewed drip coffee (8 oz cup) | ~95 mg |
| Decaf lungo | ~2 to 8 mg |
A single lungo sits just above a normal espresso and well below a full mug of brewed coffee — which surprises a lot of people. A big drip coffee often carries more total caffeine than a small, intense-tasting lungo, simply because there is far more liquid in the cup. For more on that brewed baseline and why cup size matters so much, see how much caffeine is in a cup of coffee. A decaf lungo, meanwhile, still holds a few mg, because decaffeination removes most but not all of the caffeine.
Single lungo vs double lungo caffeine
Cafes are not always consistent about what "a lungo" means. Some pull a single lungo from a single dose of grounds, while others build it on a double basket and simply let more water run through. That difference matters more for caffeine than the exact length of the pull, because the amount of coffee in the basket sets the ceiling on how much caffeine can be extracted in the first place.
As a rough guide, a single-dose lungo tends to sit in that 70 to 90 mg band, while a double-dose lungo can climb toward 120 to 160 mg — closer to a doppio, just spread across more water and a bigger cup. If you are keeping track of caffeine, it is worth knowing which one your machine or your barista is actually making, because the two can differ by roughly double.
What changes the lungo caffeine content
Several things nudge the lungo caffeine content up or down, which is why any single number is only a starting point:
- Dose of grounds. More coffee in the basket means more caffeine available to extract. A lungo pulled from a double basket will run well above one from a single.
- How long you pull it. A longer flow of water pulls a little more caffeine, though with diminishing returns as the shot stretches out and turns thin.
- Robusta vs arabica. Robusta beans carry roughly twice the caffeine of arabica by weight, so a blend with robusta in it pushes the number higher.
- Roast level. Roast matters less than folk wisdom suggests. By weight the difference between a light and a dark roast is fairly small; how you dose and pull the shot matters more.
- Decaf. A decaf lungo drops to just a few mg — handy for an evening cup that still tastes like coffee.
Because these factors stack together, a strong double-shot robusta lungo and a gentle single arabica one can sit far apart. Take the 70 to 90 mg range as a middle-of-the-road guide, not a guarantee for your particular cup.
The taste trade-off
It is worth being honest about what you get for that small caffeine bump. Pulling a lungo pushes roughly twice the water through the puck, and the later part of that flow is where more bitter, astringent compounds tend to come through. So a lungo trades a larger, more diluted, often more bitter cup for only a little extra caffeine over a normal shot.
If your goal is purely more caffeine, a second short shot or a doppio is a more efficient route. If you enjoy the longer, gentler-in-strength drink for its own sake — something bigger than a thimble of espresso to sip slowly — then the lungo makes sense on its own terms. It is a style choice as much as a caffeine choice, and plenty of people reach for it simply because they like a longer drink.
How a lungo fits your daily caffeine
For most healthy adults, general guidance puts a moderate daily caffeine ceiling at around 400 mg, which would be several lungos — but that is a broad average, not a personal target. Your own comfortable amount depends on body size, tolerance, sleep quality and how sensitive you are to caffeine. For the fuller picture, see how much caffeine you can have per day.
Some people should be more cautious. If you are pregnant or breastfeeding, take medication that can interact with caffeine, or notice jitteriness, a racing heart or disrupted sleep, the right amount for you may be much lower — and those situations are worth raising with your own healthcare provider rather than relying on a general figure. Responses vary from person to person, and this is general information, not medical advice.