Non-magnetic cookware like aluminum pots or clay earthenware generally cannot be used
Why aluminum and copper, despite being metals, are not magnetic
Electron spins pair up and cancel each other out, with remaining unpaired electrons creating magnetism
Ferromagnetic iron works (as well as nickel and cobalt)
Lead, mercury, copper, hydrogen, and water are diamagnetic, while platinum and aluminum are paramagnetic and become very weakly magnetized
