Can I cancel my Nitro Can Subscription? P&R Team February 17, 2020 03:34 Updated Absolutely! The Pure Black Nitro Can Subscription is like our coffee subscriptions, whereby you're able to cancel any time! Just login to your Account-> Manage Subscriptions. Related articles What is the shelf life for Nitro Cans? How do I store my Nitro can? Do you charge freight on your Pure Black Nitro Can Subscription? How does your Pure Black Nitro Can Subscription work? How much caffeine is in a Nitro Can? Comments 0 comments Please sign in to leave a comment.