Miele DGC 6700 Operating And Installation Instructions page 131

Remove cleaning residues. Cleaning residues reduce the
non-stick effect.
The following cause lasting damage to the PerfectClean
surfaces and must not be used:
– abrasive cleaning agents e.g. powder or cream cleansers,
pumice stones,
– cleaners for ceramics cooktops,
– ceramic and stainless steel cleaners,
– steel wool,
– abrasive sponges, e.g. pot scrubbers or sponges which
have been previously used with abrasive cleaning agents,
– oven cleaners must not be used on hot PerfectClean
surfaces at higher temperatures, or left on too long,
– cleaning in the dishwasher,
– spot cleaning with mechanical cleaning devices.
Cleaning and Care
131