Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to near boiling and force it through a tightly packed, finely ground coffee in a portafilter to extract a concentrated cup of espresso. Many models allow you to regulate key espresso elements like temperature https://wwwcoffeeeuk95674.shotblogs.com/do-not-forget-best-home-espresso-machine-10-reasons-that-you-no-longer-need-it-43913216