How much caffeine is in a Nitro Can? P&R Team February 13, 2020 04:11 Updated Each Nitro can contains around 150-200 mg. Similar to what a similar sized brewed coffee has. Related articles What is the shelf life for Nitro Cans? How do you drink the Pure Black Nitro Coffee? What are the ingredients of the coffee concentrate? Do you charge freight on your Pure Black Nitro Can Subscription? How do I store my Nitro can? Comments 0 comments Please sign in to leave a comment.