Beverages - Yale School of Medicine < Yale School of Medicine

“Rocket Fuel” self-heating coffee was introduced in 2011 by the UK Food Brands Group. Sold in UK supermarkets and by Amazon UK, it features recyclable cups and contains the stimulant guarana, “designed to deliver a high octane boost”. Guarana seeds contain 2–4.5% caffeine compared to 1–2% caffeine in coffee beans. ................
................