Aluminum, Tin, Copper And Brass; Ceramics - Miele Dishwasher Care And Maintenance

3.5 Aluminum, tin, copper and brass

These materials are not suitable for cleaning in a dishwasher as they have
only limited chemical resistance.

3.6 Ceramics

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
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