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 the portafilter to create an espresso that is concentrated. Many models allow you to control important espresso variables like temperature https://www-coffeee-uk13681.blognody.com/29787726/5-people-you-should-be-getting-to-know-in-the-bean-to-cup-espresso-machine-industry