Cooling wort , my idea

[brewguyver]

Not to stir the pot (pun intended), but after poo-pooing the OP's idea, I ended up doing it. Had the BIAB recipe go bad in double parallel brew session over the holiday. After a 90 minute soak, the hydrometer read 1.025 (probably due to yo-yo temperature SNAFU). I had to use all the spare DME in the house to get up to a reasonable OG.

Long story short I was so fed up by the end that I dumped the brew over the top of some store-bought ice. Grains were old, hops were old, the starter was ready and I was leaving town the next morning so i figured "'eff it."

That was 3 weeks ago and the beer isn't noticeably infected *yet.* It also isn't awful. I plan on dubbing it "Botched BIAB Bitter" and seeing how long it lasts - will report back.

 

[MarcusKillion]

First off I think people are far too paranoid about infections . What is going to infect your beer ? Ice ? Store bought ice is not infected with anything . It is frozen commercially and nothing much can survive that . Besides most people use water to make their beer I would guess unless you have some special chemical the rest of us do not know about . Do you know how many things are in that water ? Lots .
I am thinking infections are most likely the result of mold spores or similar getting in the brew. The air in a home is contaminated with a huge amount of this kind of stuff yet infections are rare .
Now I would definitely not drop a bag of ice in my beer. Who knows who touched that bag with what nasty on their hands . The ice is most likely much better than your tap water . The bag I would put in another bag that I had sanitized .