Miele CM 7750 Operating Instructions Manual page 15

Cleaning and care
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Disconnect the coffee machine from the power supply before
cleaning.
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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.

Do not clean the machine with a steam cleaner or immerse it in
water as this will damage the machine. Steam or water could reach
the 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.
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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.
Warning and Safety instructions
15