How much caffeine is there an a can of Iced Espresso? April 18, 2023 22:47 Updated Caffeine content can vary, but on average there are 100 mgs in 12 oz. Related articles Is there milk in Iced Espresso? Do your Iced Espresso cans need to be refrigerated? What is the shelf life for Iced Espresso? I can't have much caffeine anymore, can I change my subscription to decaf? I see that Peet’s Iced Espresso contains Pectin. What is Pectin?