Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water until near boiling and force it through a tightly packed finely ground coffee into a portafilter to extract a concentrated cup of espresso. Many models allow you to manage key espresso variables like temperature https://www-coffeee-uk39309.mpeblog.com/53496419/the-ultimate-glossary-of-terms-about-best-home-espresso-machine