Ragalta RES-17000 Manual De Instrucciones página 7

Using the cover:
Use the glass cover where possible when cooking all food
types.
The cover prevents smells from escaping and reduces cooking
time.
Note:
The glass cover has a vent through which hot steam can
escape!
Avoid contact with this escaping steam.
The cover can become extremely hot during operation therefore
use oven gloves, etc. where possible when removing the cover
to avoid burns.
After use:
Set the temperature regulator to the 0 level and pull the plug out
of the mains socket!
Allow the unit to cool down thoroughly before cleaning it.