Question: is dry sherry the same as sherry vinegar?
Answer: In sherry vinegar, the alcohol has been converted to vinegar (a/k/a acetic acid). It need not (and usually does not) contain added salt. ... Unless otherwise stated, a recipe calling for sherry is written to use a dry sherry like a fino, manzanila, or amontillado. (I prefer an amontillado for its more robust flavor).