Late last year, I started brewing various British beer styles to become familiar with them. My goal was to have a collection of beers I could enter into this year's SODZ British Beer Fest homebrew competition. I'd managed to brew an Ordinary Bitter, a Scottish 80 Shilling, Irish Red Ale, British Brown Ale, and others. I entered four of these into the Barley's competition this year. Two came back with terrible scores because they gushed out of the bottle on the judges. Having brewed for several years now, and having not varied my sanitation practices much, I was in complete denial when the Barley's judges suggested that the beer had been infected. When the same thing happened with two different beers at the SODZ competition, I could no longer deny it. I had a bacterial infection somewhere. But where? Given my brewing process, I had the following candidates: Brewing System: If the plumbing inside either the PicoBrew Zymatic or the Brewie+ became infected, sp...