Capsule Machine Coffee Capsules can be costly and limited when compared to the option of buying regular ground coffee powder. They also provide less of a flavor when in comparison to freshly roasted and ground coffee. Capsules are made of plastic or aluminum and contain espresso that has been ground. https://www-coffeee-uk97900.blogthisbiz.com/34341043/how-do-you-explain-capsule-coffee-machine-to-a-5-year-old