If you pick up a coffee on your way to work, you might just be getting more - or less - of a caffeine boost than you bargained for.
New research coming from at Which? has revealed the coffee shops that have the most and least caffeine in a cappuccino. The consumer experts found that Costa Coffee, the chain with the most caffeine, has coffee five times more potent than Starbucks, the weakest contender.
To determine the results, Which? measured caffeine levels in a cappuccino from high-street favourites Caffè Nero, Costa, Greggs, Pret a Manger and Starbucks.
