What to Look For in a Barista Espresso Machine The espresso machine is among the most complex coffee machines available. It is comprised of three major components. The bottom holds the water, and the middle is the filter-basket. The machine was a huge hit and helped popularize home barista espresso. https://www-coffeee-uk39309.mpeblog.com/53454416/the-3-greatest-moments-in-commercial-espresso-machine-history