White wine vinegar can often be substituted for champagne vinegar in a recipe. Since champagne vinegar has a sweeter taste than white wine vinegar, the juice of a lemon or orange can be added to the white wine vinegar.
A bit of sherry mixed with white wine vinegar can also be a champagne vinegar substitution. The rest of the ingredients in the recipe determine whether or not champagne vinegar can be replaced without the dish being ruined.
Champagne vinegar is pale in color and has a delicate flavor. The champagne vinegars made in France tend to have a flavor that is especially full-bodied.