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 Are your Iced Espresso products Kosher? How much caffeine are in your capsules? What type of filters do you offer? Is your coffee grown with pesticides? Do your Iced Espresso cans need to be refrigerated?