By Cara Houlton2026-08-25T11:14:00
Source: Costa Coffee
The caffeine content of similar-sized matcha drinks from Costa Coffee, Starbucks and Pret a Manger can range hugely, from 28mg to 99mg
A cappuccino from Costa Coffee contains as much caffeine as four cans of Red Bull and over three-and-a-half times as much caffeine as one from Starbucks, a new Which? study found.
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