UK · Coffee & café
How much caffeine is in Costa Signature Blend Cortado?
141 mgManufacturer listed · Standard
Costa lists its Cortado as two Corto shots and publishes 141 mg for that extraction.
Source and provenance
- Source type
- Manufacturer
- Market
- UK
- Value basis
- Manufacturer listed
- Source reviewed
- 21 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 141 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 | 141 mg | 141 mg | 141 mg |
| 3 | 70.5 mg | 93.0 mg | 104.8 mg |
| 5 | 44.4 mg | 70.5 mg | 85.9 mg |
| 8 | 22.2 mg | 46.5 mg | 63.9 mg |
| 10 | 14.0 mg | 35.3 mg | 52.4 mg |
| 12 | 8.8 mg | 26.7 mg | 43.0 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 12.5 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.