52
Types of crockery and their care
Glassware:
Glass is used in every household because
of its excellent properties such as
transparency and shine, and because it is
neutral in taste and odourless. The basis
for the manufacturing of glass is a mixture
of sand and various metal oxides such
as potassium and magnesium, which are
fused in temperatures of between 1500°C
and 1800°C.
After frequent washing, changes to the
surface of the glass can sometimes be
perceived. This is due to tiny deterioration
that becomes visible as a milky tarnish or
iridescence. Such deterioration cannot be
reversed and is therefore irreparable.
Tarnishing can be caused by many different
factors. If you apply the following rules,
you will enjoy your glassware for a long
time:
• When buying new glasses, ensure they
are labelled as dishwasher-safe. This
type of glassware has been tested by the
manufacturer by washing the glass at
least 1000 times.
• Set the water hardness for your
dishwasher. Your local water authority will
be able to provide you with information on
the water hardness in your area.
• Even high-quality, delicate glasses can be
washed without any risk in your Miele
dishwasher. This has
been confirmed by
Riedel, manufacturer
and originator of fine
wine glasses.
