Two weeks ago I brewed several batches of beer outside. Weather was awesome. I left all my equipment outside on the deck because I knew I'd be brewing again.
Today I did a big 10 gal batch to split between two different yeast but when I put my immersion chiller in and turned on the water, my wort erupted. Turned out that it got cold enough in the last week to freeze and split my chiller in 3 spots. I'm gonna assume that the wort was warm enough to kill any bacteria in the water (and I'm sure that there wasn't much in my tap water). But, I have to leave my wort outside all night to let it cool down. Hope the lid is on tight enough or we'll see what sort of yeast is floating around my back yard.