Choosing your espresso maker is an incredibly important choice, and that's not just because of the price tag. These beautifully designed machines can make or break a coffee shop because they are so essential to your business. Essential to many of coffee shop staple drinks, espresso is made by forcing hot water through finely ground and tightly packed coffee pellets. The result of this pressure brewing is about two ounces worth of concentrated coffee that has a layer of caramel colored cream. To make espresso, you need a special machine capable of precise brewing required to pull a shot of espresso.