Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water until close to boiling, then force it through tightly packed, finely ground coffee in a portafilter to extract a concentrated cup of espresso. Many models let you control key espresso factors like temperature and https://coffeee60431.mybuzzblog.com/9379322/a-rewind-what-people-said-about-bean-to-cup-espresso-machine-20-years-ago