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Old 08-01-2012, 12:00 AM   #1
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Default Counterflow not good enough...

My counterflow chiller just isn't getting the job done. It took me almost 2 hours to cool down 12 gallons of wort. My cold water is a bit warm (60+). I'm cooling to 66-68 degrees.

This past weekend I had the water go through an immersion chiller in ice water. It didn't help much unfortunately and the ice melted within 20 minutes.

So what can I buy or do? I want to get my chilling down to 30 minutes.

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Old 08-01-2012, 12:03 AM   #2
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That doesn't make any sense. Are you sure the wort and the cooling water are running in opposite directions? Is this a hose CFC or a plate chiller?

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Old 08-01-2012, 12:09 AM   #3
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That doesn't make any sense. Are you sure the wort and the cooling water are running in opposite directions? Is this a hose CFC or a plate chiller?
And are you recirc'ing or once through? A temp difference of 60+ to 66 is not much at all and this might be your biggest issue. How long did it take to get to 75?
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Old 08-01-2012, 12:24 AM   #4
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And are you recirc'ing or once through? A temp difference of 60+ to 66 is not much at all and this might be your biggest issue. How long did it take to get to 75?
Even recircing woudn't take 2 hours.

The best way is to maximize the water flow, measure the wort output from the chiller, and reduce the wort flow until you get the output temp you want. Send the wort straight to the fermenter. I usually recirc for a minute or two until the output temp gets to where I want it, then switch to the carboys.
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Old 08-01-2012, 12:37 AM   #5
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Even recircing woudn't take 2 hours.

The best way is to maximize the water flow, measure the wort output from the chiller, and reduce the wort flow until you get the output temp you want. Send the wort straight to the fermenter. I usually recirc for a minute or two until the output temp gets to where I want it, then switch to the carboys.
Definitely going in opposite directions.

I'm doing a once through and it's just above a trickle going into the fermenter to keep the temp below 70 degrees. Are you suggesting recirculating the wort through the CFC right back into the boil kettle?
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Old 08-01-2012, 12:38 AM   #6
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And are you recirc'ing or once through? A temp difference of 60+ to 66 is not much at all and this might be your biggest issue. How long did it take to get to 75?
Once through. I just measured and the temp of the water was 64.6, yikes.

Haven't done 75.
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Old 08-01-2012, 12:41 AM   #7
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Definitely going in opposite directions.

I'm doing a once through and it's just above a trickle going into the fermenter to keep the temp below 70 degrees. Are you suggesting recirculating the wort through the CFC right back into the boil kettle?
That's what I do, and it kills three birds with one stone. (Please don't call PETA !)

One, since my tap water in the summer is warmer, I recirculate until I hit 140, and then send the wort to the fermenter on the next pass. Two, that means my hoppy beers can have "whirlpool hops" added at flame out, and I get lots of hoppy goodnews, and three- it means that I can "whirlpool" a bit in my boil kettle so that the hops pellets form a cone in the center.

It still doesn't take me all that long to chill 10 gallons of wort, though. I'd suggest making sure that you get your water in your chiller as cold as possible (the prechiller is a great addition), making sure to agitate/recirculate the wort and also moving the prechiller around so you don't get hot spots.
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Old 08-01-2012, 01:02 AM   #8
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i use a plate chiller and can cool 10 gallons in under 15min using gravity alone, 2 hrs is way too long.

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Old 08-01-2012, 01:07 AM   #9
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When my cooling water (pool water) is too high, I just chill the best I can and toss the carboys in my chest freezer. Gets them down in a couple of hours.

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Old 08-01-2012, 01:22 AM   #10
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i use a plate chiller and can cool 10 gallons in under 15min using gravity alone, 2 hrs is way too long.
how cold is your water?
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