Sometimes life happens and you aren't around to drink all the coffee goodness. While you can't actually pause your subscription, you can easily cancel it and re-activate it at a later date.
To do this, go to the My Account page to login and click on the My Subscriptions tab.
From there, you can click on the Cancel button next to the subscription that you want to cancel. Once the subscription has been canceled, you can then go back and re-activate it at any time by clicking on the Re-activate button.