Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point, then force it through finely ground coffee packed tightly into a portafilter. This results in a concentrated espresso. Many models let you regulate key espresso factors such as temperature https://www-coffeee-uk13681.blognody.com/29821027/11-faux-pas-that-are-actually-acceptable-to-make-with-your-best-home-espresso-machine