Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point and force it through finely ground coffee sucked tightly inside a portafilter. This produces a concentrated espresso. Many models let you regulate the most important espresso elements like temperature https://coffeee-uk07504.eedblog.com/29879001/best-home-espresso-machine-a-simple-definition