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 into a portafilter. This results in an intense espresso. Many models allow you to regulate key espresso elements https://wwwcoffeeeuk62513.alltdesign.com/20-things-you-should-know-about-bean-to-cup-espresso-machine-49571906