Grindenstein's patented funky design was created to empty the group portafilter handle of home espresso machines quickly, conveniently and with little to no mess.

For everyone who makes espresso coffee at home, the biggest problem has always been removing the used grinds from inside the group handle. Forget denting the sink, washing away oily grinds or your hands inside a trash can - do as the cafes do and simply bang your grinds into a stein.