**Espresso (double) caffeine: 126 mg · CoffeeLog**

> Espresso (double) contains 126 mg of caffeine per 60 ml: the decay curve, and how long it takes to fall under the 100 mg sleep threshold.

Source: https://trackcaffeine.com/caffeine-in/espresso-double/ · updated: 2026-05-28

Espresso (double)

126mg

per 60 ml (2 fl oz) serving

Falls under 100 mg after 1.9 h.

1. [Home](https://trackcaffeine.com/)

2. [Caffeine in…](https://trackcaffeine.com/caffeine-in/)

3. Espresso (double)

Espresso drinks

# How much caffeine is in Espresso (double)?

126mg of caffeine · per 60 ml (2 fl oz) serving

≈ cups of coffee

1.3×

Share of the 400 mg daily guidance

32%

Time to half (63 mg)

5.7 h

Time to fall under 100 mg

1.9 h

Source

Food-composition data

A population average for a typical preparation, chiefly from USDA FoodData Central. The real range is wide — the same cup can vary by half again with grind, dose and brew time.

- [How we source every figure](https://trackcaffeine.com/sources/)

**One double espresso contains 126 mg of caffeine.** (TrackCaffeine dataset, measured serving 60 ml; source:
- [/dataset/](https://trackcaffeine.com/dataset/).)

That 126 mg in a 60 ml serving equals about 210 mg per 100 ml when calculated from the stated values (126 mg ÷ 60 ml × 100 ml; TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), and it represents roughly 1.3 times the caffeine in a standard 240 ml drip coffee, where drip coffee is 96 mg per 240 ml as listed in our reference table (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)). At a physiological level, 126 mg typically produces alerting effects for most adults within 15–45 minutes after ingestion and peaks in blood concentration within about 30–90 minutes after a shot (TrackCaffeine dataset model; see
- [half-life and kinetics](https://trackcaffeine.com/tools/caffeine-calculator/)), but subjective sensitivity varies by individual and prior exposure (see timing and sensitivity notes below).

*Espresso (double) starts at 126 mg. About 61 mg is still circulating six hours later and 29 mg after twelve — the long tail is why an afternoon drink can still be measurable at bedtime. Free to reuse with a link to this page.*

*Starting from one serving, here is roughly how much caffeine is left as the hours pass (population-average half-life of 5.7 hours).*

| Time | Caffeine left | % left | Vs sleep threshold |
| --- | --- | --- | --- |
| At serving | 126 mg | 100% | above |
| After 1 h | 112 mg | 89% | above |
| After 3 h | 87 mg | 69% | below |
| After 6 h | 61 mg | 48% | below |
| After 9 h | 42 mg | 33% | below |
| After 12 h | 29 mg | 23% | below |

## How long Espresso (double) stays in your system

The page uses a first-order elimination model with a population-average half-life of 5.7 hours, i.e. remaining = dose × 0.5^(hours / 5.7) (model parameter: population-average half-life 5.7 h; TrackCaffeine internal model,
- [/tools/caffeine-calculator/](https://trackcaffeine.com/tools/caffeine-calculator/)).

Applying that formula to this dose gives the arithmetic applying the 126 mg quantity: remaining = 126 mg × 0.5^(hours / 5.7) (TrackCaffeine dataset dose 126 mg,
- [/dataset/](https://trackcaffeine.com/dataset/)); at 3 hours this evaluates to approximately 87 mg remaining (given on this page as 3 h ≈ 87 mg, TrackCaffeine dataset decay values,
- [/dataset/](https://trackcaffeine.com/dataset/)), at 6 hours ≈ 61 mg (given as 6 h ≈ 61 mg,
- [/dataset/](https://trackcaffeine.com/dataset/)), at 9 hours ≈ 42 mg (given as 9 h ≈ 42 mg,
- [/dataset/](https://trackcaffeine.com/dataset/)), and at 12 hours ≈ 29 mg (given as 12 h ≈ 29 mg,
- [/dataset/](https://trackcaffeine.com/dataset/)). These numbers are the modelled amounts still present in the body by the mathematical half-life model above, not clinical thresholds of effect.

For practical interpretation: if a double espresso is consumed at 15:00, the modelled remaining caffeine is about 61 mg at 21:00 and about 42 mg at midnight, using the 6 h and 9 h decay points quoted above (TrackCaffeine dataset decay values,
- [/dataset/](https://trackcaffeine.com/dataset/)), and those residual amounts are what contribute to ongoing stimulation and sleep disruption risk discussed below (see Drake et al. 2013 on sleep impact,
- [Drake et al., 2013](https://jcsm.aasm.org/doi/10.5664/jcsm.3170)).

## How late can you drink Espresso (double)?

*For Espresso (double) at 126 mg, the last moment it can be drunk and still fall under 100 mg by a 23:00 bedtime. Free to reuse with a link to this page.*

This double espresso provides 32% of a 400 mg daily guidance value (data field: SHARE OF THE 400 mg DAILY GUIDANCE = 32%; the 400 mg/day guideline is reported by EFSA (2015),
- [EFSA, 2015](https://www.efsa.europa.eu/en/efsajournal/pub/4102)), so three similar doubles would exceed that 400 mg benchmark (TrackCaffeine dataset dose and guidance comparison,
- [/dataset/](https://trackcaffeine.com/dataset/)).

For sleep planning: Drake et al. (2013) found that 400 mg of caffeine taken six hours before bedtime reduced total sleep time by over an hour (
- [Drake et al., 2013](https://jcsm.aasm.org/doi/10.5664/jcsm.3170)), and our decay model shows that a 126 mg double at 15:00 leaves about 61 mg at 21:00 and about 42 mg at 00:00 (6 h ≈ 61 mg and 9 h ≈ 42 mg values, TrackCaffeine dataset decay table,
- [/dataset/](https://trackcaffeine.com/dataset/)), which means residual stimulation at bedtime can be substantial even many hours later; use the
- [Latest Cup Before Bedtime](https://trackcaffeine.com/tools/last-cup-before-bed/) tool to estimate personalized cutoffs based on your bedtime.

Certain groups should be more cautious: EFSA (2015) recommends pregnant women limit caffeine to 200 mg per day (EFSA, 2015), so a single double espresso at 126 mg uses a large portion of that pregnancy recommendation (TrackCaffeine dataset dose,
- [/dataset/](https://trackcaffeine.com/dataset/)); adolescents and medically sensitive people should follow clinical guidance or consult a clinician (see our calculators and weight-based limits at
- [Safe daily limit by body weight](https://trackcaffeine.com/tools/safe-daily-limit/) for a tailored estimate).

## How it compares

*Espresso (double) at 126 mg set against its own category and against the drinks most people use as a mental reference. The dashed lines are the 100 mg sleep threshold and the 400 mg daily guidance. Free to reuse with a link to this page.*

*Every drink in the Espresso drinks category in our dataset, with serving size and concentration.*

| Drink | Serving | Caffeine | Per 100 ml |
| --- | --- | --- | --- |
| Espresso (double) | 60 ml | 126 mg | — |
| [Flat white](https://trackcaffeine.com/caffeine-in/flat-white/) | 160 ml | 130 mg | — |
| [Americano](https://trackcaffeine.com/caffeine-in/americano/) | 240 ml | 126 mg | — |
| [Latte (large, 2 shots)](https://trackcaffeine.com/caffeine-in/latte-large-2-shots/) | 350 ml | 126 mg | — |
| [Mocha](https://trackcaffeine.com/caffeine-in/mocha/) | 240 ml | 95 mg | — |
| [Cortado](https://trackcaffeine.com/caffeine-in/cortado/) | 90 ml | 79 mg | — |
| [Latte](https://trackcaffeine.com/caffeine-in/latte/) | 240 ml | 68 mg | — |
| [Espresso (single)](https://trackcaffeine.com/caffeine-in/espresso-single/) | 30 ml | 63 mg | — |

Within the espresso-family entries on TrackCaffeine, this double espresso at 126 mg matches the caffeine listed for our Americano entry (Americano, 126 mg;
- [/caffeine-in/americano/](https://trackcaffeine.com/caffeine-in/americano/)) and is the same total caffeine as a large latte with two shots (Latte (large, 2 shots), 126 mg;
- [/caffeine-in/latte-large-2-shots/](https://trackcaffeine.com/caffeine-in/latte-large-2-shots/)), demonstrating that adding water or milk changes volume but not the dose in our dataset (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)).

Compared to a typical 240 ml drip coffee at 96 mg (Drip coffee, 96 mg per 240 ml; TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), the double espresso is 1.3× the caffeine content (data field: CUPS OF DRIP COFFEE EQUIVALENT = 1.3× using drip reference 96 mg per 240 ml, TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)); put another way, two single espressos in our dataset (each 63 mg) equal the double's 126 mg, while some milk-based drinks such as a 240 ml latte are much lower in caffeine in our data (Latte, 68 mg;
- [/caffeine-in/latte/](https://trackcaffeine.com/caffeine-in/latte/)), reflecting shot count and serving conventions rather than bean chemistry alone.

## What changes the number for Espresso (double)

Serving size and extraction are the primary drivers of the 126 mg figure: this page lists a 60 ml double espresso at 126 mg (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), while a single espresso in our dataset is 30 ml at 63 mg (see
- [Espresso (single), 63 mg](https://trackcaffeine.com/caffeine-in/espresso-single/)), which shows the per-shot doubling by volume and dose in the dataset (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)).

Preparation style moves caffeine without changing coffee mass: a 20 ml ristretto is 63 mg in our data (Ristretto, 63 mg;
- [/caffeine-in/ristretto/](https://trackcaffeine.com/caffeine-in/ristretto/)) even though it is smaller than a single shot because extraction concentration can be higher; conversely, diluting a double shot into an Americano keeps the caffeine at 126 mg while expanding volume—our Americano entry is 240 ml at 126 mg (see
- [Americano, 126 mg](https://trackcaffeine.com/caffeine-in/americano/)), showing volume does not equal dose in these preparations (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)).

Other same-category drinks in the dataset illustrate how small recipe changes alter caffeine: a large latte with two shots is 350 ml at 126 mg (
- [Latte (large, 2 shots), 126 mg](https://trackcaffeine.com/caffeine-in/latte-large-2-shots/)), while a standard 240 ml latte is 68 mg (
- [Latte, 68 mg](https://trackcaffeine.com/caffeine-in/latte/)), reflecting that single- versus double-shot milk drinks in our data change caffeine primarily by shot count (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)).

Sources of real-world variation include: bean variety and roast (robusta has more caffeine than arabica), grind size and tamping (which alter extraction efficiency), tamp pressure and shot time (barista technique), and machine pressure and temperature; these factors produce batch-to-batch variation that means the single published figure is an estimate (TrackCaffeine methodology,
- [/dataset/](https://trackcaffeine.com/dataset/)). Decaffeinated espresso exists and typically contains measurable residual caffeine; see our guide to decaf espresso for typical ranges and testing methodology (
- [Decaf Espresso: How Much Caffeine Is Really in It?](https://trackcaffeine.com/guides/decaf-espresso-caffeine-guide/)).

## Your personal caffeine curve

Add another drink

Your half-life · hours Bedtime

In your system now — mg

At bedtime — mg

Latest cup before bed —

Caffeine remaining over time

- [Log it in one tap in CoffeeLog →](https://trackcaffeine.com/app/)

Estimates for general information, not medical advice.

## Where this figure comes from

The 126 mg value on this page comes from the TrackCaffeine open dataset aggregation and standardised serving definitions (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), compiled from publicly available analysis and manufacturer disclosures, and cross-checked against food composition resources such as the USDA FoodData Central (USDA FoodData Central;
- [/dataset/](https://trackcaffeine.com/dataset/) lists provenance per entry).

Published values disagree because caffeine content varies by bean species, roast, grind, dose, extraction time and lab method; we will update this page if new laboratory analyses, manufacturer laboratory data, or peer-reviewed meta-analyses change the consensus for a 60 ml double shot (TrackCaffeine methodology and update policy,
- [/dataset/](https://trackcaffeine.com/dataset/)).

## Questions about Espresso (double)

### How much caffeine is in a double espresso?

A double espresso (60 ml) is listed as 126 mg of caffeine in the TrackCaffeine dataset (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), which is about 32% of a 400 mg daily guidance (EFSA, 2015,
- [EFSA, 2015](https://www.efsa.europa.eu/en/efsajournal/pub/4102)).

### Is a double espresso stronger than a cup of drip coffee?

Yes by dose: a double espresso at 126 mg is about 1.3× the caffeine in a standard 240 ml drip coffee at 96 mg (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), although drip coffee usually has lower concentration per 100 ml.

### How long does the caffeine from a double espresso last?

Using a population-average half-life of 5.7 hours (TrackCaffeine model,
- [/tools/caffeine-calculator/](https://trackcaffeine.com/tools/caffeine-calculator/)), the page lists modelled remaining amounts: 3 h ≈ 87 mg, 6 h ≈ 61 mg, 9 h ≈ 42 mg, 12 h ≈ 29 mg (TrackCaffeine dataset decay values,
- [/dataset/](https://trackcaffeine.com/dataset/)).

### Will one double espresso keep me awake at night?

Potentially: Drake et al. (2013) showed 400 mg six hours before bed reduced sleep by over an hour (
- [Drake et al., 2013](https://jcsm.aasm.org/doi/10.5664/jcsm.3170)), and our model predicts a double at 15:00 leaves about 61 mg at 21:00 and about 42 mg by midnight (TrackCaffeine decay table,
- [/dataset/](https://trackcaffeine.com/dataset/)), which can still affect sleep in sensitive people.

### How does a double compare to two single shots?

They are numerically equivalent in our dataset: an Espresso (single) is 63 mg for 30 ml and two singles equal 126 mg, the same dose reported for the double espresso (TrackCaffeine dataset,
- [Espresso (single), 63 mg](https://trackcaffeine.com/caffeine-in/espresso-single/) and
- [/dataset/](https://trackcaffeine.com/dataset/)).

### Can I use this page to track my intake automatically?

Yes: the TrackCaffeine dataset values can be used for logging, and our site supports automatic logging for known entries such as this double espresso; see the dataset and the tools pages for integration details (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/) and
- [/tools/caffeine-calculator/](https://trackcaffeine.com/tools/caffeine-calculator/)).

## Bottom line

Short version: a double espresso (60 ml) on this page is listed as 126 mg of caffeine (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)), which is about 210 mg per 100 ml (calculated from 126 mg in 60 ml), and equals roughly 1.3× a 240 ml drip coffee at 96 mg in our reference (TrackCaffeine dataset,
- [/dataset/](https://trackcaffeine.com/dataset/)).

Modeled decay using a 5.7 h half-life gives remaining = 126 mg × 0.5^(hours / 5.7), producing the listed checkpoints: 3 h ≈ 87 mg, 6 h ≈ 61 mg, 9 h ≈ 42 mg, 12 h ≈ 29 mg (TrackCaffeine dataset decay values and model,
- [/dataset/](https://trackcaffeine.com/dataset/)). This single block contains the key dose and the modelled persistence figures you can quote.

CoffeeLog · iOS

## Track this automatically with CoffeeLog

This site answers the question once. CoffeeLog answers it every day — logging what you drink, showing caffeine fade in real time, and telling you the last cup you can have before it reaches your sleep.

- [Download on the App Store](https://apps.apple.com/us/app/caffeine-tracker-coffeelog/id6774424227)
- [Open the calculator](https://trackcaffeine.com/tools/caffeine-calculator/)

## Read next

1. [Flat white — 130 mg Espresso drinks](https://trackcaffeine.com/caffeine-in/flat-white/)
2. [Americano — 126 mg Espresso drinks](https://trackcaffeine.com/caffeine-in/americano/)
3. [Latte (large, 2 shots) — 126 mg Espresso drinks](https://trackcaffeine.com/caffeine-in/latte-large-2-shots/)
4. [Mocha — 95 mg Espresso drinks](https://trackcaffeine.com/caffeine-in/mocha/)
5. [Cortado — 79 mg Espresso drinks](https://trackcaffeine.com/caffeine-in/cortado/)
6. [Caffeine half-life calculator Calculators](https://trackcaffeine.com/tools/caffeine-calculator/)
7. [Latest cup before bed Calculators](https://trackcaffeine.com/tools/last-cup-before-bed/)
8. [The caffeine dataset Open caffeine dataset](https://trackcaffeine.com/dataset/)

TrackCaffeine provides general reference information about caffeine. It is not medical advice. Caffeine values are public-source estimates, not exact measurements.

---

HTML version: https://trackcaffeine.com/caffeine-in/espresso-double/
Structured data for this site: https://trackcaffeine.com/api/v1/openapi.json · https://trackcaffeine.com/llms.txt
Free to quote and reuse with a link back to the source URL above (CC BY 4.0).