Choosing the Best Ground Coffee For Your Espresso Machine If you own an espresso machine, you'll want to make sure that your ground coffee is of the highest quality. This is because espresso machines require a fine grind to extract the maximum amount of coffee. Extraction happens when water passes https://wwwcoffeeeuk07003.theobloggers.com/35961661/what-is-coffee-espresso-machines-and-how-to-utilize-it