[HoosierBrew]

I have been using a stainless spoon at the end of the boil to stir up a whirlpool and accelerate cooling without any noticeable issues (I used to just use the IC in a similar manner by swirling it).  It isn't getting real splashy, either way, but it gets 10 gallons down below 100F fairly quickly; from there I just wait it out until 56F, rack to fermenter and aerate with a sanitized two blade aerator using a cordless drill.  The only time I have tasted anything like that described was with an Alt that I let sit long in primary and jostled around too much moving to a bottling bucket and then into bottles.  Maybe it was HSA, but I don't think so...

+1.  I have always stirred with a spoon while cooling with my IC to shorten cooling time.  Never to a froth, but very steadily. My only two oxidized batches in 20 years could be traced to definite post-fermentation issues. One, where my daughter knocked off an airlock from a fermenter (never good), and the other from accidental splashing at kegging.

[gevans73]

I've been using a paint stirrer drill to cool my 10 gallon batches for nearly a year now and have never had an issue at all.  I run the drill fairly slow and am careful to not produce foam or bubbles.  Seems to work better with the paint stir inside the chiller.  It still cools 10 gallons in less than 15 minutes.

[klickitat jim]

Sweet!

[ccfoo242]

And this should not be confused with Cold Side Naration which is what happens to my speech after drinking a few too many!

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[Pi]

I am careful about not aireating the mash, but is there a concern with HSA while lautering/sparging? I usually runoff into my BK that hangs on the edge of the kettle simply with a hose. sounds like someone taking a leak in my kettle.

[denny]

I am careful about not aireating the mash, but is there a concern with HSA while lautering/sparging? I usually runoff into my BK that hangs on the edge of the kettle simply with a hose. sounds like someone taking a leak in my kettle.

Based on my experience, I'd say no.  The way I batch sparge would make me a primary candidate for problems, but I've never had any.

[cornershot]

I am careful about not aireating the mash, but is there a concern with HSA while lautering/sparging? I usually runoff into my BK that hangs on the edge of the kettle simply with a hose. sounds like someone taking a leak in my kettle.

Didn't I see on another thread that you took a gold in NHC 2nd round? The judges apparently found no hsa issues so no worries, right? How old was your beer at the time of judging?
Btw congrats!