Miele CVA 6401 Operating And Installation Instructions page 12

IMPORTANT SAFETY INSTRUCTIONS
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Do not use oily beans or beans that have been treated with
caramel, sugar, or other substances. Sugar and oil will damage the
coffee system.
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Do not use any flavored ground coffee. The sugar in the coffee will
stick to and block the brew unit of the coffee system. The cleaning
tablets for degreasing the brew unit will not remove this type of de-
posit.
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Only use plain milk. Most sugary additives can clog the milk lines
and damage the machine.
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If using dairy milk make sure that it has been pasteurized.
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Do not place any alcohol mixtures which are alight underneath the
main dispenser. The flames could ignite plastic components and
cause them to melt.
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Do not swing from or hang anything on the machine front when it
is open as this could damage the hinges of the machine.
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The main dispenser connector cap is lubricated with silicone
grease. Take care not to get this on your clothes when removing or
replacing the containers or other components.
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Do not use the coffee system to clean objects.
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