Miele DGC6500 Operating And Installation Instructions page 73

Tips
Settings
When defrosting food which has frozen together, e.g. berries
or pieces of meat, separate these about half-way through the
defrosting time.
Do not refreeze food once it has thawed.
Special Modes> Defrost
or
Operating Modes > Steam Cooking >
Temperature: see table
Duration: see table
Special Modes
73