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Old 09-05-2007, 02:19 AM   #1
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Default need colder water.

so texas water isn't an ideal temperature for cooling wort. i measured my tap water at 85*. i have an immersion chiller but don't have the $ for a pre-chiller. i have been using my ic to get the temp down to 115 and then using an ice bath too. any ideas on how to get colder water in the ic w/o buying a $45 pre chiller?

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Old 09-05-2007, 02:20 AM   #2
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add salt to the ice, will bring down the freezing temperature of the water.

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Old 09-05-2007, 02:22 AM   #3
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Drain icewater from your bottling bucket through the chiller. You'd just have to get the bucket up nice and high to have a good gravity drain. Use this method after the wort hits 120F or less.

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Old 09-05-2007, 02:24 AM   #4
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I use a 60' copper coil in salted ice that goes in to a second 60' copper coil that is in the wort. Why? cause south Tx. tap water is bathing temp.

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Old 09-05-2007, 02:25 AM   #5
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Quote:
Originally Posted by Bobby_M
Drain icewater from your bottling bucket through the chiller. You'd just have to get the bucket up nice and high to have a good gravity drain. Use this method after the wort hits 120F or less.
I do this but with my mash tun. Works very well. Also, take your spoon and get a fast whirlpool going, don't let it stop and this will speed it up some too.
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Old 09-05-2007, 02:26 AM   #6
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Quote:
Originally Posted by Beerrific
I do this but with my mash tun. Works very well. Also, take your spoon and get a fast whirlpool going, don't let it stop and this will speed it up some too.
And the increase in surface area helps with the O2.
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Old 09-05-2007, 02:28 AM   #7
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Since you don't have the money for a pre-chiller.........

Use extra hose: coil 25-50' of the hose in a large bucket or container of ice water.

Viola, El Cheapo pre-chiller.

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Old 09-05-2007, 02:30 AM   #8
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Oh and when you do decide to upgrade, look into buy a submersible pond-style pump to recirculate the ice water instead of a pre-chiller...one less layer of copper to restrict the heat flux. This will probably run you less than a pre-chiller too.

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Old 09-05-2007, 02:45 AM   #9
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Right on beerrific.. I've said it a hundred times here but copper is way more expensive than a cheap pump. Not only that, but prechilling is another barrier to thermal transfer. Putting icewater directly into the IC is the best way since it's already 32F or colder if you add rock salt.

Sea, coiling hose in an icewater bath as a prechiller sounds good in theory but it doesn't work in practice. It might bring 80F tap down to 79F if you run the water slow.

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Old 09-05-2007, 02:51 AM   #10
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Another vote for a submersible pump. I bought one for about 20 bucks, I'll hook up the wort chiller to the hose faucet until it gets to about 100 degrees, then I put the pump in ice water and hook it up to the chiller until it gets to under 80 degrees. It's been real hot here, but I've been able to cool a full boil in a bit over 30 minutes.

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