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 use is of the highest grade. This is because espresso machines require a fine grind to extract the highest amount of coffee. Water passes through the https://wwwcoffeeeuk08319.sharebyblog.com/29702011/a-step-by-step-guide-to-coffee-espresso-machines-from-beginning-to-end