8 evidence-led brand reviews
UK caffeine guides by brand
These guides separate figures a brand publishes from secondary-reported, indicative and older approximate values. CaffCalc will not move a caffeine value between countries, infer it from nutrition or hide a weaker evidence source.
Monster Energy UK caffeine guide
Compare caffeine in the UK Monster cans for which the manufacturer publishes an exact serving value, without transferring US formulations.
2 documented drinksReviewed 4 September 2026Red Bull UK caffeine guide
Compare manufacturer-listed caffeine for documented Red Bull and Red Bull Sugarfree can sizes sold in Great Britain.
2 documented drinksReviewed 23 August 2026Starbucks UK caffeine guide
Browse caffeine figures for standard Starbucks UK recipes and sizes, transcribed from the current first-party beverage guide.
61 documented drinksReviewed 23 August 2026Costa Coffee UK caffeine guide
Compare Costa UK espresso extractions and standard café recipes using the caffeine and shot-count tables in Costa’s own guide.
10 documented drinksReviewed 4 September 2026Caffè Nero UK caffeine guide
Compare clearly flagged 2026 figures reported by Which? while seeing that Caffè Nero’s public UK menu does not publish caffeine totals.
5 documented drinks · 5 flaggedReviewed 4 September 2026Pret A Manger UK caffeine guide
Compare clearly flagged Pret caffeine figures reported by Which? while seeing the gap in Pret’s public UK product pages.
7 documented drinks · 7 flaggedReviewed 4 September 2026Greggs UK caffeine guide
Compare clearly flagged Greggs supplier figures reported by Which?, with the warning that they are indicative rather than exact measurements.
5 documented drinks · 5 flaggedReviewed 4 September 2026McDonald’s UK caffeine guide
Review older approximate values published by McDonald’s UK, clearly separated from its current nutrition guide, which omits caffeine.
2 documented drinks · 2 flagged