Miele Dishwasher Entretien et maintenance - Page 21

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3.5 Aluminum, tin, copper and brass

These materials are not suitable for cleaning in a dishwasher as they have

only limited chemical resistance.

Depending on their structure, constituents and the purity of the raw

materials used (clay, kaolin, felspar and quartz), ceramics can be divided

into two groups fine and heavy.

Note

Ceramics are unsuitable or only suitable to a very limited extent for

cleaning in a dishwasher. Heavy ceramics should always be washed by

hand. With fine ceramics the harder and less porous an item is, the more

dishwasher-proof it is.

The following types of fine ceramics should not be washed in a

dishwasher:

1. Earthenware (simple pottery, faience):

Colored or white. They are porous and sensitive to contact.

2. Stoneware (or soft and hard stoneware, fine faience)

White. They are porous and sensitive to contact.

e. The surfaces of stainless-steel cooking utensils

develop brown, blue and mother-of-pearl-like

discoloration. This occurs when cooking various

vegetables (cauliflower, celeriac, kohlrabi,

mushrooms, potatoes, savoy cabbage) and fish due

to the reaction of hydroxide ions (OH ions) with

minerals (phosphor, silica and magnesium

compounds). Such discoloration can be easily

removed with a machine cleaner or scouring agent.

Technical Information