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 in the portafilter to create a concentrated cup of espresso. Many models let you regulate key espresso elements like temperature and pressure. https://www-coffeee-uk83762.educationalimpactblog.com/52138452/it-s-time-to-forget-best-home-espresso-machine-10-reasons-why-you-no-longer-need-it