Features - Puly Caff made in Italy, - The most advanced espresso machine cleaner in the world. - NSF certified - prepacked so no measuring required - use 1-2 packs at a time to clean your machine - buy as you need so it never expires How it Puly Caff works? Cleaning detergent expands under pressure, cleans all contact surfaces, and release its full cleaning power faster than any other espresso cleaner. Puly Caff foams on contact with water, rinses quickly and leaves behind no residue or aftertaste. When the foam is gone so is the Puly Caff.