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Crash Cooling

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Nagel Family Brewing:
I am curious as to the science behind crash cooling a beer.  When you crash cool are you permantly precipitating out compounds that won't resuspend if the beer warms back up.  I am assuming that the yeast that floc to the bottom during crash cooling would resuspend into solution if the beer warms back up.  Is this a correct assumption?  What about other compounds that precipitate out during crash cooling.  What are they and will they resuspend if the beer is warmed back up?
Thanks,
Ryan

Thirsty_Monk:
If you listen Brew Strong with Dr. Bamforth he talked a little bit about it (and other things).

When you cold condition your beer small particles like haze will drop down.
It is better cold condition at 32F for just a few days then at 36F for couple of weeks.

http://thebrewingnetwork.com/shows/572
http://www.thebrewingnetwork.com/membersarchive/bs_haze110309.mp3

Nagel Family Brewing:

--- Quote from: Thirsty_Monk on November 24, 2009, 12:12:32 PM ---If you listen Brew Strong with Dr. Bamforth he talked a little bit about it (and other things).

When you cold condition your beer small particles like haze will drop down.
It is better cold condition at 32F for just a few days then at 36F for couple of weeks.

http://thebrewingnetwork.com/shows/572
http://www.thebrewingnetwork.com/membersarchive/bs_haze110309.mp3

--- End quote ---

I think I listened to that.  I am curious as to what happens though if the beer is crash cooled but then warms back up before transferring?  I don't remember that coming up on Brew Strong.

Thirsty_Monk:
You should transfer the cold beer because if you worm it up some "chill" haze might return.
That also goes if you filter your beer.
You want to leave all the "gunk" (technical term) in the first vessel.

Nagel Family Brewing:

--- Quote from: Thirsty_Monk on November 24, 2009, 12:19:38 PM ---You should transfer the cold beer because if you worm it up some "chill" haze might return.
That also goes if you filter your beer.
You want to leave all the "gunk" (technical term) in the first vessel.

--- End quote ---

Yeah, I understand I want to do that.  I am just curious of the science behind it and what happens when the beer warms up.  I am curious what is permanently flocculating and what is temporarily flocculating. 

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