UK · Coffee & café
How much caffeine is in Pret Matcha Latte?
Not published in the brand’s public UK menu. This figure is reported by Which? and should be treated as approximate.
Which? reported 28 mg for a 355 ml hot Pret matcha latte in its August 2026 UK comparison.
Interactive serving
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Source and provenance
- Source type
- Independent publisher
- Market
- UK
- Value basis
- Reported by independent comparison
- Source reviewed
- 4 September 2026
- Source version/date
- 25 August 2026
Which? says it asked five chains for caffeine information and used online guides; many figures were obtained through brand press offices. The brand’s public UK menu does not publish this value, so treat it as a reported figure rather than a first-party public listing.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 28 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 | 28 mg | 28 mg | 28 mg |
| 3 | 14 mg | 18.5 mg | 20.8 mg |
| 5 | 8.8 mg | 14 mg | 17.1 mg |
| 8 | 4.4 mg | 9.2 mg | 12.7 mg |
| 10 | 2.8 mg | 7 mg | 10.4 mg |
| 12 | 1.8 mg | 5.3 mg | 8.5 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 0.8 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
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