Buying an Espresso Coffee Machine Espresso machines heat water to a temperature near boiling and then force it under pressure to pass through tightly packed ground coffee portafilters. They also supply steam for milk-based drinks. The majority of espresso makers have customizable settings for different sizes of drinks and strengths. https://wwwcoffeeeuk74477.blog-gold.com/36683681/how-to-explain-best-ground-coffee-for-espresso-machine-to-your-mom