Costa Coffee Espresso contains 100 mg of caffeine per Single shot. That is about the same caffeine as a typical 8 oz cup of brewed coffee (about 95 mg).
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Costa Coffee Espresso Caffeine Content by Serving
Figures are for Espresso (Costa Coffee).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| Single shot | - | 100 mg | - | Moderate |
| Double shot | - | 200 mg | - | High |
| Triple shot | - | 300 mg | - | Very High |
Source: caffeine figures from Caffeine Informer (values from Costa Coffee nutrition info and customer service), accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How Costa Coffee Espresso Compares to Coffee
At 100 mg per Single shot, Costa Coffee Espresso delivers about the same caffeine as a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.
When to Stop Drinking Costa Coffee Espresso Before Bed
With caffeine's median 5-hour half-life, a Single shot of Costa Coffee Espresso (100 mg) needs about 5 h to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 5:00 PM (17:00) for a 10 PM bedtime and 6:00 PM (18:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The Costa Coffee Espresso sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
