Espresso is normally made from Arabica beans, which are known to be the finer coffee bean produced, instead of Robusta. Robusta does have more caffeine, however it is the lower quality bean that can jeopardize the last taste. Ironically enough, espresso has less caffeine material than a routine cup of coffee.<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br>