The story goes... back in the days when the winery was really just a private family business, they had a problem with bottles of wine disappearing... the staff was stealing their private reserve. So the locals, being a very superstitious and religious bunch, were fed a story through the "grapevine" that the Devil lived in the cellars, and had been recently seen. Since the rumors of the Devil inhabiting the cellars, the leakage of bottles ceased, and so became the name given to the wine in that cellar, Casillero del Diablo (Cellar of the Devil), and the legend lives on.