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Date: 28 Aug 2006 02:18:10
From: Todd
Subject: Cooling Wort with Dry Ice
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It's usually pretty easy to get wort down to 100 degrees F or so, but then
it gets harder.
The local Harris-Teeter supermarket has a dry ice machine, with dry ice for
$.99 a lb.
Has anybody tried dumping dry ice in wort to cool it?
Todd
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Date: 28 Aug 2006 02:42:03
From: Dick Adams
Subject: Re: Cooling Wort with Dry Ice
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Todd <Noname@NoSpam.invalid > wrote:
> It's usually pretty easy to get wort down to 100 degrees
> F or so, but then it gets harder.
>
> The local Harris-Teeter supermarket has a dry ice machine,
> with dry ice for $.99 a lb.
>
> Has anybody tried dumping dry ice in wort to cool it?
I have considered packing a pail in dry ice. If you had
a 7.5 gallon pail and the bags of dry ice were secure and
sanitized, I wouldn't see a problem with your idea. But
I would be concerned about the bag breaking open.
Dick
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Date: 27 Aug 2006 23:02:16
From: Dan Logcher
Subject: Re: Cooling Wort with Dry Ice
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Dick Adams wrote:
> Todd <Noname@NoSpam.invalid> wrote:
>
>>It's usually pretty easy to get wort down to 100 degrees
>>F or so, but then it gets harder.
>>
>>The local Harris-Teeter supermarket has a dry ice machine,
>>with dry ice for $.99 a lb.
>>
>>Has anybody tried dumping dry ice in wort to cool it?
>
>
> I have considered packing a pail in dry ice. If you had
> a 7.5 gallon pail and the bags of dry ice were secure and
> sanitized, I wouldn't see a problem with your idea. But
> I would be concerned about the bag breaking open.
What would happen if you dumped dry ice into the hot wort?
--
Dan
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Date: 27 Aug 2006 23:07:15
From: Phil
Subject: Re: Cooling Wort with Dry Ice
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On Sun, 27 Aug 2006 23:02:16 -0400, Dan Logcher
<dlogcher*xspam*@comcast.net > wrote:
>Dick Adams wrote:
>> Todd <Noname@NoSpam.invalid> wrote:
>>
>>>It's usually pretty easy to get wort down to 100 degrees
>>>F or so, but then it gets harder.
>>>
>>>The local Harris-Teeter supermarket has a dry ice machine,
>>>with dry ice for $.99 a lb.
>>>
>>>Has anybody tried dumping dry ice in wort to cool it?
>>
>>
>> I have considered packing a pail in dry ice. If you had
>> a 7.5 gallon pail and the bags of dry ice were secure and
>> sanitized, I wouldn't see a problem with your idea. But
>> I would be concerned about the bag breaking open.
>
>What would happen if you dumped dry ice into the hot wort?
I would imagine (having never done this) that the dry ice would cause
the hot wort to spill over. You would lose a lot of wort. Also, the
dry ice might shatter and shoot out of the pot. I've seen this happen
with regular ice in a drink.
Phil
======
visit the New York City Homebrewers Guild website:
http://www.hbd.org/nychg
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Date: 28 Aug 2006 11:02:27
From: alebrewer
Subject: Re: Cooling Wort with Dry Ice
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Todd wrote:
> It's usually pretty easy to get wort down to 100 degrees F or so, but then
> it gets harder.
>
> The local Harris-Teeter supermarket has a dry ice machine, with dry ice for
> $.99 a lb.
>
> Has anybody tried dumping dry ice in wort to cool it?
>
> Todd
Food-grade dry ice is like food-grade CO2 (it's the same thing). CO2
is CO2, whether gas, liquid, or solid. The only difference is the
temperature, pressure, and density. Obviously, if it is contaminated,
it's contaminated. But, that's true regardless of its state (that is
physical state-- gas, liquid, or solid; not California or Kansas).
As far as cooling wort, it isn't very effective. If you drop a piece
in the wort, it will sink to the bottom and bubble. The dry ice will
develop a vapor blanket around it, slowing the heat transfer and the
cold CO2 will bubble up making "smoke" on the surface (think
Halloween). The "smoke" is frozen water vapor. Technically, a small
amount of wort will loose a lot of heat to form frozen vapor, which is
whisp's away (instead of cooling the wort). Non-technically, all the
"cold" is used to make a small amount of frozen vapor which turns into
"smoke" and floats away.
It would make a wicked-looking Witches Brew, though.
ab
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Date: 28 Aug 2006 17:51:21
From: John 'Shaggy' Kolesar
Subject: Re: Cooling Wort with Dry Ice
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On Mon, 28 Aug 2006 02:18:10 GMT, <Noname@NoSpam.invalid > wrote:
> It's usually pretty easy to get wort down to 100 degrees F or so, but then
> it gets harder.
>
> The local Harris-Teeter supermarket has a dry ice machine, with dry ice for
> $.99 a lb.
>
> Has anybody tried dumping dry ice in wort to cool it?
Dry ice is usually not food grade. The stuff I've seen is pretty nasty,
dirty, etc. I don't think it would be very sanitary.
John.
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