Miele CM 7550 CoffeePassion Operating Instructions Manual page 16

Warning and Safety instructions
Cleaning and care
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Clean the coffee machine and the milk flask daily, particularly
before using for the first time.
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All parts of the milk system need to be cleaned thoroughly and
regularly. Milk contains bacteria which proliferate rapidly with
inadequate cleaning.
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Do not use a steam cleaner to clean this machine. Steam could
reach electrical components and cause a short circuit.
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If you do not utilise automatic descaling, you will need to descale
the coffee machine manually on a regular basis. Miele cannot be
held liable for damage resulting from not descaling the machine,
using the wrong descaling agent or an unsuitable descaling solution
concentration.
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Degrease the brew unit regularly with Miele cleaning tablets.
Depending on the natural oil content of the coffee used, the brew
unit can become blocked quite quickly.

Used coffee grounds should be disposed of with the organic
rubbish or on the compost heap. Do not empty them down the sink,
as they could block it.
For machines with stainless steel surfaces:

Do not use sticky notes, adhesive tape, masking tape or other
types of adhesive on the stainless steel surfaces.

Stainless steel surfaces are susceptible to scratching. Even
magnets can cause scratches.
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