UK · Coffee & café
How much caffeine is in Costa Signature Blend espresso?
Costa’s dated April–August 2026 UK guide publishes caffeine values for one to four Signature Blend espresso shots and notes that natural and preparation variation remains.
These Costa figures are from the guide for 30 April–26 August 2026. We haven’t checked a newer recipe yet, so ask Costa or check the latest menu if you need the current amount.
A practical next step
Looking for a lower-caffeine alternative?
Costa Decaf coffee is recorded at 2 mg for 2 shots / 1 pod, compared with 100 mg for the selected Costa Signature Blend espresso serving.
This compares named servings, not necessarily equal volumes, taste or nutrition. Verified source record. These Costa figures are from the guide for 30 April–26 August 2026. We haven’t checked a newer recipe yet, so ask Costa or check the latest menu if you need the current amount.
Compare these listed servings →Browse manufacturer-identified caffeine-free UK fizzy drinks or choose another documented swap.
Interactive serving
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Caffeine by serving
| Serving | Caffeine | Basis |
|---|---|---|
| 1 shot | 100 mg | Manufacturer listed |
| 2 shots | 200 mg | Manufacturer listed |
| 3 shots | 325 mg | Manufacturer listed |
| 4 shots | 400 mg | Manufacturer listed |
Where this figure comes from
- Source type
- Manufacturer
- Market
- UK
- How we got the amount
- Manufacturer listed
- Source reviewed
- 23 August 2026
- Source version/date
- 30 April 2026
Guide applies 30 April–26 August 2026.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 100 mg starting value. They are calculations, not measurements of caffeine in a particular person.
| Hours elapsed | 3-hour half-life | 5-hour half-life | 7-hour half-life |
|---|---|---|---|
| 0 | 100 mg | 100 mg | 100 mg |
| 3 | 50 mg | 66.0 mg | 74.3 mg |
| 5 | 31.5 mg | 50 mg | 61.0 mg |
| 8 | 15.7 mg | 33.0 mg | 45.3 mg |
| 10 | 9.9 mg | 25 mg | 37.1 mg |
| 12 | 6.3 mg | 18.9 mg | 30.5 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 10.0 hours. The faster and slower columns show why one fixed clearance time shouldn’t be treated as a personal fact.
Use this caffeine value
Use this amount in a calculation, or save the drink to your tracker on this device.