Well daily before closing you should flush your coffee screen with the porta filter one that is closed for flushing using pulycaff. It is a good item and make sure you soak all porta filters and screens in a pulycaff powder half tea spoon in hot water and soak over night. But make sure always and daily flush with also half tea spoon of pulycaff in the closed screen and open while hot water is falling to get all the grinds from teh pipes.
You can see how by checking on the net how to clean and flush the coffee screen with the porta filter.
- back-flush the machine with Urnex machine cleaner one a day and soak the screens, portafilters, etc. in the same cleaner for at least 10 minutes and then scrub them with a Pallo brush.
- clean our french presses like any other dish every few uses (we rinse well with hot water between each use of course).
- and we clean our mugs with dish soap every 8th customer... ;)