Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to near boiling and force it through tightly packed finely ground coffee into the portafilter to create an espresso that is concentrated. Many models let you regulate important espresso variables like temperature and pressurization. https://coffeeeuk97582.ivasdesign.com/51938348/watch-out-how-best-home-espresso-machine-is-taking-over-and-what-can-we-do-about-it