Here is how it works. The Puro espresso machine cleaner removes the residual build-up of coffee solids and oils from screens, valves, and tubes of brewing groups. This is important to quality coffee because a dirty machine will create dirty-tasting coffee. Backflush your machine following the directions on the label, and soak the portafilters (Not the Handles!) in a solution of very hot water and Puro.
Thoroughly rinse groups and portafilters. Always re-season your machine and portafilters by making and discarding one espresso on each group. Residential espresso machines should be cleaned weekly at a minimum.
The 4oz home size gives you access to commercial-quality care and cleaning for your personal espresso machine.