I decided to try my hand at making some hard cider this year. I’ve been making my own apple cider vinegar for a few years and I’ve heard it’s better if you start with hard cider. Generally to make my vinegar I simply pour cider into a big glass jar, cover with cheesecloth and let it sit for a few months until it’s vinegar, easy as that. I do buy unpasteurized cider from a small local press, so it contains the natural yeasts in it that ferment it and then turn it into vinegar.
for more of the story: chiotsrun.com/2009/11/02/making-hard-cider/