I just signed up for a copy of an e-book from
Oak Hill Homestead that's about making vinegar. It's a short read but it's got a bunch of good basic tips on getting started with the process of making vinegar. Here's a quote from the e book:
One of the most versatile liquids in history was probably discovered by accident when someone left wine to ferment too long. The sour taste was probably an unwelcome surprise to the procrastinating vintner, but his mistake was an important discovery to ancient civilizations.
I've had a good time making vinegar and this little e book would be a good place to start if you're thinking about starting to make your own. It's available for
free if you sign up for the author's newsletter.