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 that is packed tightly inside a portafilter. This produces an intense espresso. Many models let you regulate key espresso factors such as https://wwwcoffeeeuk73731.blogdomago.com/29137405/11-ways-to-totally-block-your-bean-to-cup-espresso-machine