On one of Chris' tangents he told me ALL about fermentation and distillation and what constitues good alcohol. I learned the differences between gin, whiskey, wine, brandy, tequila, scotch, vodka, and beer to name just a few. Chris even makes his own beer, which he says is legal, although I'm skeptical. Because of the hydrogen bonding between ethanol and water it is impossible to completely seperate through distillation; this is called and azeotrope. When distilling vodka you end up with 95% ethanol and 5% water.