CAFFEINE IN DECAFF COFFEE
You may be wondering: just how much caffeine is in decaff coffee anyway? Is decaff coffee caffeine-free or does it just contain a reduced amount of caffeine?
Although decaff coffee (decaffeinated coffee) has gone through a process of decaffeination to remove most of the caffeine, decaff coffee is not actually completely caffeine free. To be labeled as decaff, coffee must meet the EU standard of being 99,9% caffeine free.
The Arabica coffee bean contains about half of the caffeine content of the Robusta bean and is thus more suitable for making high quality decaff coffee. There are rare types of Arabica that naturally have very low caffeine levels as well. But in any case, every mug of decaff coffee you drink is going to have a minimal amount of caffeine.