I Love My Electric Knifes
When I am carving Turkeys Etc, It makes it a lot easier to carve it nicely, [ and less dangerous for any guest nearby, LOL ]
As to recycling the old motor part just throw it in an old DW, Washer, Dryer etc destined for the scrap-recycling pile, the metal in the motor, copper in the cord should never be just put in a land fill.
John L.