a nice cup of espresso (espresso) itself is not only good to enjoy, but also an important base of all kinds of fancy coffee; and making a good cup of coffee, in addition to a good machine, there is a good coffee handy tamper, is more important! Fill pressure coffee powder in order to make every grain of coffee powder has been pressurized hot water and appropriate average extract a perfect cup of coffee, so some people think that the perfect filling pressure is a kind of art, but also the key to success at cooking!