Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat the water to near boiling point before forcing it through finely ground coffee that is packed tightly inside the portafilter. This produces a concentrated espresso. Many models let you control important espresso variables like temperature https://coffeeeuk20244.develop-blog.com/36141836/avoid-making-this-fatal-mistake-with-your-best-home-espresso-machine