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 sucked tightly into the portafilter. This creates a concentrated espresso. Many models let you regulate key espresso factors such as temperature https://coffeee76933.izrablog.com/30363269/it-s-the-next-big-thing-in-bean-to-cup-espresso-machine