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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > Fermentation chiller lager
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Old 11-15-2009, 06:38 AM   #1
yusupov
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Default Fermentation chiller lager

I have built a version of the Son of Fermentation Chiller, and wanted to know if anyone has successfully brewed a lager using one of these??? and what temps they fermented and lagered at???

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Old 11-15-2009, 07:46 AM   #2
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Grats on your new build, yusupov! I haven't but I'd push for around 40 'F and something with flavor.

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Old 11-15-2009, 05:29 PM   #3
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I have one and I just lagered an Oktoberfest at 40*F for three weeks. Needed 2 frozen gallon jugs each day almost. Just changed them out in the morning everyday (2 in the freezer, 2 in the chamber)

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Old 11-15-2009, 06:05 PM   #4
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i built a very large one(holds 12 carboys) and i pump fluid from a frezzer through a aux. radiator cooler with a fan. before i had plumbed it i was using 2 gallon milk jugs with glycol/water mix (the glycol absorbs more cold energy) and it worked fine.

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Old 11-15-2009, 06:09 PM   #5
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Quote:
Originally Posted by CPTHOOK View Post
i built a very large one(holds 12 carboys) and i pump fluid from a frezzer through a aux. radiator cooler with a fan. before i had plumbed it i was using 2 gallon milk jugs with glycol/water mix (the glycol absorbs more cold energy) and it worked fine.
sounds interesting... any pics?
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Old 11-15-2009, 08:03 PM   #6
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Quote:
Originally Posted by CPTHOOK View Post
i built a very large one(holds 12 carboys) and i pump fluid from a frezzer through a aux. radiator cooler with a fan. before i had plumbed it i was using 2 gallon milk jugs with glycol/water mix (the glycol absorbs more cold energy) and it worked fine.
That is a good idea with the glycol, I am going to do that. Does it take a little longer to freeze the glycol/water mix? and roughly what percentage is the mix?
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Old 11-15-2009, 08:09 PM   #7
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Originally Posted by hlumbard View Post
I have one and I just lagered an Oktoberfest at 40*F for three weeks. Needed 2 frozen gallon jugs each day almost. Just changed them out in the morning everyday (2 in the freezer, 2 in the chamber)
Nice one! that sounds like a fair amount of work (all the freezing). Let me know how the Oktoberfest turns out.

Does anybody have some good tips for making the son of fermentation chiller as cold/well insulated as possible? i saw somebody put little cat flaps over the intake and outtake holes, I am not sure how much that would help though.

thanks,
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Old 11-15-2009, 10:36 PM   #8
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sorry no pic's of the chamber yet its ruffly 8' length by 34" deep and 36" tall with a split lid. I was using a 50/50 mix of glycol/water in my jugs and thats is what i use now. I plan to convert to Panatherm LR fluid soon.

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Old 11-15-2009, 10:39 PM   #9
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Quote:
Originally Posted by yusupov View Post
Nice one! that sounds like a fair amount of work (all the freezing). Let me know how the Oktoberfest turns out.

Does anybody have some good tips for making the son of fermentation chiller as cold/well insulated as possible? i saw somebody put little cat flaps over the intake and outtake holes, I am not sure how much that would help though.

thanks,
How much room do you have and how many carboys/kegs at one time?
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Old 11-15-2009, 11:50 PM   #10
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How much room do you have and how many carboys/kegs at one time?
I have a spare room with a decent amount of space. I made the chiller just big enough for one carboy (a little smaller than the son of fermentation chiller plans) so that there is a smaller volume to keep cool.
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