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 sucked tightly inside the portafilter. This creates a concentrated espresso. Many models let you regulate key espresso elements like temperature and pressure. https://coffeee-uk78281.fare-blog.com/29920264/the-top-5-reasons-people-win-in-the-best-home-espresso-machine-industry