Caffeine is naturally occurring in over 60 types of plant species; the most common being coffee Arabica and coffee Robusta, tea and cocoa beans.

Cup sizes vary considerably across Europe. As a guideline a 150 ml sized cup from ground roasted coffee Arabica contains around 85 mg, instant coffee 60 mg, decaffeinated coffee 3 mg, leaf or bag tea 30 mg, instant tea 20 mg and cocoa or hot chocolate 4 mg caffeine.

Robusta coffees have about twice as much caffeine as Arabica coffees.

Decaffeinated green coffee must contain less than 0.1% caffeine (dry weight) to comply with EU regulations. This corresponds to about 3 mg caffeine in a cup of decaffeinated coffee.

This information is intended for Healthcare professional audiences.
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