This place was hard to find. Although I began with the intention of finding vinegar information, it was by accident that I stumbled upon this thread. The search functions proved perfectly useless – as it provides 7,200 links to undesired conversations. Rad might have scolded me for not having thought to apply “distilled” vinegar to my search terms though. Unfortunately for me, this university just terminated what was probably its most knowledgeable and prolific professor. A resource and wealth of information this forum may not be able to replace.
“Distilled vinegar is not produced by distillation but by fermentation of distilled alcohol”.
“Vin Aigre” (sour wine - vinegar) is inevitability produced by acetic acid bacteria when a fermented concoction is abandoned or neglected for a long period (months). This bacterium like baking/brewing yeasts, is on flowers, bees & fruit, in dirt and naturally present in the air, everywhere and all the time. In theory you should be able to create vinegar by fermenting a beer or wine from molasses, dates, sorghum, fruits, berries, melons, coconut, honey, beer, maple syrup, potatoes, beets, malt, grains, whey and so fourth – then leave it in open contact with air for a couple of months.
Commercial vinegar is produced by either slow traditional methods or by the faster industrial methods. The fast method involves inoculating ethanol (either concentrated or dilute as with wine or beer) with an acetobacter aceti starter called “mother of vinegar” and extra oxygenation. It might take only 2 or 3 days to produce vinegar this way. Pasteurized or not, vinegar's shelf life is practically indefinite. Mother of vinegar as a product can be purchased from places like amazon.com (but it is still a simple culture that can be collected and cultivated independently). This link provides advice for vinegar novices needing supervision.
http://boulderlocavore.com/make-it-your ... e-vinegar/" onclick="window.open(this.href);return false;" rel="nofollow
The following “traditional recipe” was nabbed from a used library book I purchased called “Back To Basics” / published by Reader's Digest.
- Open a bottle a bottle of sweet cider and let it stand at about 70 deg. F. (sweet cider here > implies unpasteurized)
After about five weeks it will turn to hard cider, then to vinegar.
You can speed the process by adding a little “mother” (the cloudy clump of bacteria that forms on the surface of natural vinegar) from a previous batch or from a friend's cider vinegar.
And now: a picture of the nefarious “
vinegar eel”!