The idea of sour beer is fairly simple; sweet wort undergoes a spontaneous fermentation when wild yeast is introduced into the mix. This then leads to the production of alcohol and a sour flavor (usually from lactic acid). We can announce this lovely fact today because thousands upon thousands...
At my first Queensland Amateur Brewing Competition (QABC), I volunteered as a steward. Upon arrival I was asked to judge, which scared the hell out of me (and still does). Fortunately I was paired with a very forgiving judge who mentored me for the day. I set out to shut up and learn something...