The marks you are experiencing are the result of a build-up of milk proteins over the heating element. To ensure your Aeroccino works optimally, we suggest removing it.
We recommend the following steps:
You can find instructions and video guidance on the Machine Assistance page.
If you have any further questions about your Aeroccino, you can contact Nespresso directly via our toll free number 1800 623 033 or send us a message on our live chat.
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