Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point before forcing it through finely ground coffee packed tightly inside a portafilter. This results in a concentrated espresso. Many models let you regulate key espresso factors such as temperature https://wwwcoffeeeuk23782.losblogos.com/29316943/best-home-espresso-machine-explained-in-fewer-than-140-characters