Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point and force it through finely ground coffee that is packed tightly inside the portafilter. This produces an intense espresso. Many models allow you to control important espresso variables like https://wwwcoffeeeuk87064.thelateblog.com/30339961/the-10-most-terrifying-things-about-bean-to-cup-espresso-machine