Home Espresso Machines A machine that produces espresso uses hot water under pressure to push through coffee grounds. Once you've perfected the conditions for brewing, it's hard to go back. The most efficient machines have reservoirs or a plumbed connection to a constant source of water. They also come with https://coffeeeuk77599.arwebo.com/52938971/who-s-the-world-s-top-expert-on-espresso-machine