Re: removing ethanol from wine

john@xxxxxxxxxx wrote:

> Thanks for the reply. The objective is, as you say, to remove ethanol
> from the wine so that the wine is non-alcoholic (collection of ethanol
> by distillation is not the objective).
>
> So having established that this is possible, do you have any idea how
> long and at what temperature would be necessary to remove all or most
> ethanol?
>
> And, is there a test you can do to confirm the proportion of ethanol
> still left in the wine?

If it is white wine you could try adding a very small amount of potassium
permanganate to a sample of the still-hot wine - if there is alcohol left
then the pink colour of the KMnO4 should disappear - this will not be
visible with red wine, however.
.

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