http://walthamstow.london/News/click-to-read-4/ An espresso bean is the seed of the espresso plant. They are seeds yet they are normally referred as beans due to their resemblance in appearance. Beans are composed mostly of endosperm that includes 0.8 - 2.5 % caffeine, which is one of the major reasons the plants are grown. Sat, 23 Nov 2019 10:03:11 UTC en