
White balsamic vinegar is a pale, golden-to-clear condiment vinegar made from white grape must blended with white wine vinegar.
Light-bodied and thin on the palate, finishing clean and sharp; sharp acetic acidity carries a medium grape-must sweetness and a mild white-grape fruit note.
Bartenders add it by the drop or half-teaspoon to introduce sharp acidity and a touch of grape sweetness without the darkening that a dark balsamic would bring; it functions as a souring, seasoning accent rather than a primary sour.
Another pale wine vinegar supplies the same sharp acidity and light colour, with a small amount of light sweetener added to rebuild the grape-must sweetness; the mild white-grape-must fruit note, however, cannot be reproduced from a plain vinegar.
Dark balsamic vinegar (PGI)
Dark balsamic is a protected (PGI) product made with caramelized, concentrated must and often added caramel colour, giving a dark tone and a thicker, more intense flavour; white balsamic is deliberately kept pale, is milder, and is an unprotected 'condimento'.
Produced by blending cooked, concentrated white grape must with white wine vinegar, it is made so as to retain a light colour rather than the dark tone of ordinary balsamic. Because it preserves a pale colour and falls outside the protected 'Balsamic Vinegar of Modena' PGI, it is sold as a 'condimento'.
A modern variant developed in the balsamic-producing region of Modena, Italy, as a paler alternative to traditional dark balsamic vinegar.