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 control key espresso factors like temperature and https://wwwcoffeeeuk03517.laowaiblog.com/29141583/why-you-re-failing-at-bean-to-cup-espresso-machine