You will want to backflush your Quick Mill Vetrano Design on a weekly basis. Backflushing is the process used to clean out the shower screen and brew group. The cleaner will remove the old coffee oils and deposits, as well as prevent coffee from building up on the shower screen.
Learn how to backflush prosumer espresso machines like the Vetrano Design in the video below.
Maintaining Your Espresso Machine - Backflushing