Espresso grinders are the kind of grinders you should use to make an espresso. Espresso requires a specific grinding, coarser than the drip coffee requires. The espresso grinders are specially tuned to provide the best granule size for the espresso pressure brewing.

 

Being as important as all the other components (the coffee beans quality, the espresso machine, and the barista) the grinding step must be executed flawlessly. Any mistake will reduce the quality your espresso could achieve. That'a why espresso grinders should always be kept clean and properly maintained. And don't forget you should always grind just the amount you're about to use.