Gastroback DESIGN ESPRESSO ADVANCED PLUS Operating Instructions Manual page 60

Note:
If steam is already escaping from the steam wand and it is not immersed in the milk,
the escaping steam can squirt milk out of the jug.
steam from the steam wand occurs. Be careful not to scald yourself on the hot steam.
Note:
Hot steam may escape or hot water may drip from the group head and the swivel
steam wand. Therefore always ensure that the swivel steam wand points towards the
drip tray when not in use.
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Commercial Style Steam Wand
The swivel-action steam wand easily adjusts to the perfect position
for texturing milk. The wand has a commercial style 360° ball joint.
Note for frothing milk:
About half of the steam wand must be immersed in the milk.
Important:
Make sure that the milk does not run over the edge of
the frothing jug.
WARNING:
Do not take the steam wand out of the milk, as long
as steam escapes. Otherwise hot milk may splash out of the frothing
jug. Turn the steam dial always back to the starting position (OFF
position) before you remove the frothing jug from the steam wand.
About 5 seconds after turning off the steam function a short burst of