Buying an Espresso Coffee Machine Espresso machines heat water to close to boiling, and then force it under pressure to pass through tightly packed ground coffee in portafilters. They can also be used to make milk-based drinks. Most espresso machines have programmable settings that can alter the strength and volume https://coffeeeuk50470.blog-eye.com/29903761/15-up-and-coming-best-ground-coffee-for-espresso-machine-bloggers-you-need-to-keep-an-eye-on