Melitta® Cleaning and maintenance Latticia OT®

Many coffee fans dream of making coffee beverages with milk like in their favourite café very simply at home. The Melitta® Latticia® OT now makes that possible. Thanks to its new integrated milk system – the LATTEperfection system, any coffee is certain to turn out how you want it. It is very uncomplicated due to intuitive one-touch operation with coloured real image buttons. The double cup mode, and the extra large bean container and water tank ensure plenty of coffee enjoyment. Coffee enjoyment at the push of a button.

[ENJI]

Hello there,
About the Avanza model, do I need to clean the milk system as well?
I bought the "PERFECT CLEAN Milk System Cleaner", but nothing is written in the machine's manual about cleaning the milk system...