Cryogenically treated cables

Has anyone noticed whether or not the color of the mesh or outer covering of their interconnects changes after cryo treating?

While I haven't had ANYTHING Cryo-treated myself, I have noticed an alarmingly significant increase in the number of "cryo-treated" used cables for sale on Audiogon - but were not advertised as such.

While there are many folks who suggest that cryo treating cables is the best thing since sliced bread, I would presume that most of us who buy used cables often, would like to know the truth behind the history of the cables.

From what I have read, CT works well on some items - but can destroy others.

For those who read this - please remember to ask the seller before buying used cables (and other components) whether or not the item for sale has been treated. I'm sure you do not want be the sucker who spends hard earned cash for someone else's scientific experiment. As far as I am concerned, if a used cable has been cryo-treated, it is worthless on the regular used market.

For those of you who brave enough to have cryo treatments done, here is the name and number of a source.

CyroPro (888)300-2356 talk to Dave - I believe they charge 10 bucks a pound for the service.

I think it's Jena Labs which really bags on using Dry Ice as a means to cryo treat cables saying, "the effects are only temporary".

I seem to remember a post on Audiogon about someone who put cables in the freezer...they got moldy and crusty or something. Ick! And to his amazement, they also sounded terrible!!

Here is the statement made by Jena Labs regarding Dry Ice:

Several audio writers, equipment modifiers, and ‘so-called technologists’ have promoted refrigeration of cables and electronic parts by packing in Dry Ice. This is NOT cryogenic treatment. It results in only minor and temporary improvement. Even gas bath refrigeration in a ‘cold furnace’ cooled by LN2 will not provide a sufficient chill. Scientifically speaking, Cryogenics refer ONLY to temperatures at or below the vapor point on Nitrogen, -320.4° Fahrenheit. Our process involves temperatures that are substantially colder than this. Clearly, dry ice has nothing to do with Cryogenics. Only true Liquid Nitrogen Immersion, as employed by JENA LABS will fully and permanently enhance the musical behavior of metallic conductors.

So.. If I had a #2 pencil cryogenically treated would I ever have to sharpen it?

What happens to the dielectric? insullation? In some cables, as much engineering goes into the dielectric as it does to the conductor itself. Couldn't changes to the matter which makes up these IMPORTANT non metallic elements of a cable increase inductance or alter the properties of the cable?