DeLonghi DBL740 Series Instruction Manual page 7

OPERATING YOUR BLENDER
13. When finished blending, press the "0" button on the speed control and
unplug the blender from the outlet. Although this unit is equipped with a
"Dual Safe System" that will automatically shut off the unit "off" if the
glass jar is removed from the base, it is not recommended to remove
glass jar while unit is "on".
(continued)
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