We already analyzed the caffeine content of 23 popular Starbucks drinks, but the 2X Caffeine K-Cups have enough caffeine to rival many of the in-store brewed beverages.An 8-ounce cup of hot medium ...

An average 8–ounce (oz) cup of coffee contains around 80–100 milligrams (mg) of caffeine. However, the caffeine content can vary considerably depending on several factors such as coffee type ...

A 24-ounce Iced Energy drink has a similar caffeine content as a 16-ounce cold brew beverage, Starbucks says. The drinks have between 120 and 185 fewer milligrams of caffeine than the discontinued ...

An average cup of coffee contains 95 mg of caffeine, but some types contain over 500 mg. This article lists the caffeine content in different coffee types.

In fact, Starbucks fans are being short-changed across the board, with their single espresso containing only 33mg of caffeine compared with 180mg in a shot from Pret.