Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines bring the water up to a boiling point, then force it through finely ground coffee packed tightly inside a portafilter. This results in a concentrated espresso. Many models let you regulate the most important espresso elements https://wwwcoffeeeuk62097.tribunablog.com/10-basics-on-best-home-espresso-machine-you-didn-t-learn-at-school-44178004