Practical investigations
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I am investigating vinegars, and was wondering is it possible to measure the ethanoic acid content/acidity in white wine vinegar compared with the distillate from distillation of white wine vinegar? Also is this distillate the same to distilled vinegar available in supermarkets?
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Igloo writes ...
Yes, it’s perfectly possible. Simply carry out titrations on the original white wine vinegar and on a sample which you have distilled. Carry out the appropriate calculations and compare results.
Commercially available distilled vinegar is certainly obtained by a similar sort of distillation process, and the product is going to be essentially the same, whether it is distilled from cider, malt or wine vinegars. However, it is likely that the original distillate is diluted somewhat before it is sold for use as a preservative or food flavouring.
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updated: 12 February 2008
