Red Wine & Superconductivity

Researchers in Japan have discovered that red wine turns iron compounds into superconductors (materials that can pass electricity with no loss, generally at extremely low temperatures).  It started when iron materials became superconductive after being immersed in liquid, but certain liquids worked better.  They tested sake, whiskey, white wine, red wine, and more (how come my science experiments were never like that?).

Red wine contains tartaric acid, which is what does it.  Gamay wine is the most efficient.  Here is a chart of what works best: