Miele CoffeeSelect CM 7750 Operating Instructions Manual page 100

Frequently asked questions
Problem
The crema on the cof-
fee or espresso is not
as it should be.
The coffee tastes weak.
The coffee grounds in
the grounds container
are sludgy and grainy.
100
Possible cause and solution
The coffee beans are no longer fresh. If roasted
coffee beans are stored open for too long, the
carbon dioxide gradually escapes from the coffee
beans. The crema is no longer formed during
dispensing.
Of course, you can still use the coffee beans.
Insufficient coffee beans are getting into the grinder
and less coffee is being brewed. Have you used a
dark roast?
This type of coffee bean is often oily. These oils can
cling to the walls of the coffee bean containers and
hinder the flow of beans.
 Make a coffee and observe whether the coffee
beans drop into the coffee bean container.
 Clean the coffee bean containers more often if you
are using darker, more oily coffee beans.
Try other types of coffee bean which are less oily.
Insufficient coffee beans are getting into the grinder
and less coffee is being brewed. Are you using a
coffee blend with very large beans or different sized
beans? The beans are possibly getting wedged or
jammed and forming "bean bridges".

Risk of injury on the moving grinder.
If you place a spoon or similar, or even fingers, in
the bean containers during grinding, you could be
injured.
Do not reach into the bean system during grinding.
Do not place any objects in the bean containers
during grinding.
 Place a narrow spoon or similar in the bean
containers and stir the coffee beans.
The ground coffee chute is blocked.
 Vacuum out the ground coffee chute using the
attachment supplied.