Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines bring the water up to a boiling point and force it through finely ground coffee that is packed tightly in a portafilter. This produces a concentrated espresso. Many models allow you to manage key espresso variables https://www-coffeee-uk39389.life3dblog.com/29146420/10-misconceptions-your-boss-holds-about-bean-to-cup-espresso-machine