Choosing the Best Ground Coffee For Your Espresso Machine If you own an espresso maker you'll need to ensure that the coffee you're using is of the highest quality. This is because espresso machines require a fine grind for the highest extraction. Water passes through the grounds of the coffee https://coffeee17921.bloggerchest.com/29707872/20-coffee-espresso-machines-websites-that-are-taking-the-internet-by-storm