Choosing the Best Ground Coffee For Your Espresso Machine If you own an espresso maker you'll need to ensure that the coffee you use is of the highest grade. This is because espresso machines require a precise grind for the highest extraction. The water flows through the coffee grounds to https://coffeee-uk62642.ourcodeblog.com/29967159/why-is-coffee-espresso-machines-so-effective-when-covid-19-is-in-session