Re: Why does hot water conduct, but cold water barely conducts?

Pure water is actually a relatively poor conductor of electricity.  The
conductivity that you notice in normal tap water is due to the impurities
(mostly disolved iron and some other metals)in the water.  The property
that you notice as the water changes to ice is due to the free movement
of electrons.  When water (and practically everything else) is at a warm
state, there is more movement of electrons.  When ice is formed, the 
electrons are far less mobile.  So, the ice becomes more of an insulator
than a conductor.  In other words, the ice is bringing about an increase in 
resistance to the flow of electrons.  Current is defined as the flow of
electrons.  So in warm water where the electrons can flow more easily,
there will be a larger current.  There may be some other properties that
come into play here, but this accounts for bulk of the phenomenon.

As far as pork chops are concerned -- this is just like any other material.
The salts, iron, and any other "conductors" in the meat will allow
electrons to flow.