UK · Coffee & café
How much caffeine is in Costa Decaf coffee?
2 mgManufacturer listed · 2 shots / 1 pod
Costa lists 2 mg for its standard two-shot decaf pod serving. Decaf is lower-caffeine, not necessarily caffeine-free.
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 2 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 | 2 mg | 2 mg | 2 mg |
| 3 | 1 mg | 1.3 mg | 1.5 mg |
| 5 | 0.6 mg | 1 mg | 1.2 mg |
| 8 | 0.3 mg | 0.7 mg | 0.9 mg |
| 10 | 0.2 mg | 0.5 mg | 0.7 mg |
| 12 | 0.1 mg | 0.4 mg | 0.6 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 0.0 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.