quote:

Originally posted by pape du neuf:
Here is a link that give a better explanation.

newscience

An excerpt-

"Analysis revealed some significant chemical changes. Most obviously, there was a marked increase in reactions between alcohols and acids to produce esters. This led to a reduction in concentrations of the long-chain alcohols known to be responsible for nasty odours and a burning mouth feel, while the increase in the concentration of esters boosted the aroma and the perception of fruitiness.
Two other good things happened: the breakdown of proteins produced free amino acids that contribute to taste and there was a noticeable reduction in the levels of aldehydes, which are responsible for "off" flavours. You can have too much of a good thing, though. Upping the voltage and applying it for longer brought new and unwanted changes, including the generation of new undesirable aldehydes. Zap it too much and the result, the panel found, was worse than the untreated original."

This is not total voodoo, unlike many other devices, but I'll wait for validated taste tests before forming any opinion.