Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point, then force it through finely ground coffee packed tightly into a portafilter. This creates a concentrated espresso. Many models let you control the most important espresso elements like temperature https://wwwcoffeeeuk01964.win-blog.com/9905892/15-things-that-your-boss-wishes-you-knew-about-bean-to-cup-espresso-machine