No need to despair if your wine went sour which often happens with the more traditional wines, there is a solution. You have lost your wine but you can distil it to obtain an excellent eau-de-vie. One of the advantages of copper is that it purifies your distillate from some of the impurities present. For more information on the properties of copper and suggestions for distilling your own eau-de-vie please consult Why use copper and Distilling Suggestions.