Choosing the Best Ground Coffee For Your Espresso Machine If you own an espresso machine, you'll want to make sure that the coffee you grind is of the highest quality. This is because espresso machines require a fine grind to ensure the highest extraction. Extraction occurs when water flows through https://coffeee78434.webdesign96.com/30311464/what-is-coffee-espresso-machines-and-why-is-everyone-dissing-it