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Old 08-02-2012, 03:39 PM   #1
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I have a 45ish' 3/8" immersion chiller (the copper was free) and I've gone ahead and plumbed a pump with a recirculation port in my keggle to recreate Jamil's IC setup. Still, with a 12.5 gallon post boil, it takes upwards of a half hour to chill to pitching temps. Ground water is usually ~70.

Generally I flow the cooling water through it at max until it start getting cold, then dial it back till it gets warm to the touch.

I'm trying to think of ways to make it cool faster, and the only thing I can think of was to maybe intertwine some copper wire in between the coils of the chiller, as it looks like they lay on top of each other and prevent flow of wort via recirculation, but I can't imagine that would help much.

I tried the sump pump in ice bath method as well, but the pump I had generated it's own heat and was counter productive, lol.

Any other thoughts before I rip it apart and turn it into a CFC? And, if I do, is 45' of CFC enough to cool the wort before entering the fermenter via pump or will I have to recirculate it back?

Thanks


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Old 08-02-2012, 03:55 PM   #2
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I have heard to keep the flow slow so there is a longer time for heat transfer. For my 5 gallon batch I have 2 twenty foot coils, one goes in the wort the second in a bucket of water and ice. It takes about 1/2 hour. I do find it goes faster if I move the coils to disturb the water and wort around the coils.

I am going to take a small electric motor or drill and attach a paint mixer to, very gently, circulate the wort over the coils.


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Old 08-02-2012, 04:47 PM   #3
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I recently hooked up Jamil's whirlpool on my setup. I still did my ice water recirculation through a pond pump once I got down around 100 degrees. It seemed to speed up the boiling down to a 100 drop a fair amount. Once I started recirculating the ice water it didn't seem to help quite as much. I would say it maybe reduced my overall chill time by about five minutes. However, because I didn't have to keep coming back and stirring the wort to get it moving, it did free me up to do other tasks during the chill.
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Old 08-02-2012, 05:42 PM   #4
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Half hour for 12+ gallons with an immersion chiller and you're complaining?
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Old 08-02-2012, 06:00 PM   #5
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Quote:
Originally Posted by BrewThruYou
Half hour for 12+ gallons with an immersion chiller and you're complaining?
Sure am!
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Old 08-02-2012, 06:30 PM   #6
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Quote:
Originally Posted by BrewThruYou View Post
Half hour for 12+ gallons with an immersion chiller and you're complaining?
Quote:
Originally Posted by phoenixs4r View Post
Sure am!
More ice, more pump, and more stirring of the hot wort then!

Depending on your water temps, I'm not sure a CFC will do much better than a half hour.
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Old 08-03-2012, 02:20 AM   #7
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Quote:
Originally Posted by kh54s10 View Post
I have heard to keep the flow slow so there is a longer time for heat transfer.[...]
You have to use a filter on things you hear. Because that makes zero sense...

Cheers!
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Old 08-03-2012, 02:28 AM   #8
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Some brewers don't chill at all they just cover and let it sit overnight. I have done it and it turned out ok
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Old 08-03-2012, 02:47 AM   #9
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Generally I flow the cooling water through it at max until it start getting cold, then dial it back till it gets warm to the touch.
For me, this was my problem. I read about this slow water = better heat transfer crap and it sounds good in theory but not in practice. Blast that water! When I dialed it back so the exiting water was warm it took me 45 minutes to do cool 5 gallons to 80 degrees. When I had it on blast it took me 25 minutes. All other variables were similar. I'd say try this first.

Good Luck!
Nick
P.S. Happy IPA Day!
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Old 08-03-2012, 02:55 AM   #10
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Quote:
Originally Posted by certaut
Some brewers don't chill at all they just cover and let it sit overnight. I have done it and it turned out ok
yep I do. works fine.


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