WHAT MAKES HIM SO SPECIAL With the tamper, the coffee powder is pressed into the portafilter. A tamper is part of the basic equipment of every barista and coffee lover and is an indispensable tool when making coffee. The way and the strength in which the tamper is pressed onto the coffee powder is decisive for the quality of the perfect espresso. Tampering releases fats, oils, flavorings and other aromas from the coffee bed in the portafilter. During the brewing process in a portafilter, the oils, fats, flavorings and other aromas are extracted from the ground. The tamper is indispensable for this purpose. The more thorough the pressure is with the tamper, the better the quality of the espresso is in the end.