Miele Steam oven Operating And Installation Instructions page 11

Cleaning and care
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Danger of injury.
Do not use a steam cleaning appliance to clean this appliance. The
steam could reach electrical components and cause a short circuit.
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Scratches on the door glass can result in the glass breaking.
Do not use abrasive cleaners, hard sponges, brushes or sharp
metal tools to clean the door glass.
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The side runners can be removed for cleaning purposes (see
"Cleaning and care").
Ensure that they are replaced correctly and do not use the oven
without them fitted.
Warning and Safety instructions
11