Note - Bosch nkf 651 a Gebrauchsanweisung

Energy
consumption
bottom and lid

Note:

20
q Make use of the residual heat. For longer cooking
times, it is possible to switch off the hotplate 5 to
10 minutes before the end of the cooking time.
q Even though the hotplate has been switched off,
you can use it for as long as the residual heat
indicator is illuminated to warm dishes or melt
ingredients.
Normal
Pan with flat
q The temperature of the hotplate is controlled via
the switching on and off of the heater; This means
that the hotplate does not always glow red. If you
select a lower heat setting, the heater will switch
off more often than with a higher heat setting. The
heater still switches on and off even on the highest
setting.
q A quiet buzzing sound may be heard when the
hotplates are heating up.
The heater of the individual hotplates may glow to
varying degrees of brightness. It may appear to
extend outside the borders defining the cooking
zone, depending on the angle from which it is
observed.
This represents a technical characteristic and has
no influence on quality or function.
1½ fold
Bottom of pan
is not flat
4 fold
Pan without lid