Maybe I'm not holding my face right (as we used to say when I was a kid), but I've been unsuccessful in making wine vinegar.

I've gone with the "just leave it out and it will turn" approach, and also with the mother method, and in neither case did I get vinegar.

Now, the mother, I suppose, may have been something else in the preexisting vinegar I had rather than real mother. But it sure seemed to answer to the description I'd read.

Oh, well.   

Dave Oesterreich