Choosing the Best Ground Coffee For Your Espresso Machine If you have an espresso machine you will be looking to ensure that the coffee you grind is of top quality. This is because espresso machines require a precise grind for maximum extraction. Extraction happens when water passes through coffee grounds https://www-coffeee-uk39389.life3dblog.com/29147687/how-coffee-espresso-machines-became-the-top-trend-in-social-media