Harry Bloomfield wrote:

Tim Lamb wrote:

switching off kettles by lifting the jug from the base

They have a switch in the base to swith the supply when
the kettle is lifted.

Perhaps the older "jug" style ones with the connector at the back did (I
haven't got one left to check) but the more common ones now have a
coaxial connector, that's permanently live. Mine has a paddle switch on
the kettle itself, not sure if they all do?