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 that is packed tightly in the portafilter. This results in a concentrated espresso. Many models let you regulate key espresso elements like https://wwwcoffeeeuk05549.blogolenta.com/26723963/why-you-re-failing-at-bean-to-cup-espresso-machine