Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines make the water hot to close to boiling point and force it through finely ground coffee packed tightly in a portafilter. This produces a concentrated espresso. Many models let you control important espresso variables like temperature https://coffeee-uk26624.blogsmine.com/30308624/an-intermediate-guide-the-steps-to-best-home-espresso-machine