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Home Brew Forums > Home Brewing Beer > General Techniques > Concern of hot side aeration?
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Old 09-20-2011, 12:16 AM   #1
Goblism
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Default Concern of hot side aeration?

I am approaching my first all grain batch. I currently have 2 kettles, one is a 11 gallon that I installed a 1/2" valve on the bottom, the other is a 24 gallon with a pre-installed 2" valve. The valve on the large tun is some wierd firefighter type.
Now here is the delema. I want to do a 10 gallon batch (Maybe even a 15 gallon batch) I am unable to use my plate chiller with the 24 gallon tun due to the odd valve type. What I am hoping to do is use the big tun to boil my beer, than once I am done boiling I will transfer the beer through the 2" valve into my smaller 11 gallon kettle. The biggest problem is the beer would spash when it fell the 18 inches to go from the big tun to the smaller kettle.

Is this going to cause enough aeration to be of any concern. I have read numerous threads on hot side aeration and don't know if I should be concerned or not.

Thanks!

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Old 09-20-2011, 12:29 AM   #2
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i have never really been concerned with hot side aeration, I use some thermal hose to move my hot wort though. I have heard/read both arguments about worrying or not worrying but i don't know what to believe.

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Old 09-20-2011, 02:42 AM   #3
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Any other opinions?

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Old 09-20-2011, 02:46 AM   #4
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Yes. My opinion is that hot side aeration is a myth and there truly is no issue. And frankly if you think just a little bit about the post potential hot side aeration period you might realize that the concept is somewhat illogical. But it is my opinion, I know nothing, your mileage may whatever etc. and WTF.

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Old 09-20-2011, 02:46 AM   #5
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If you are concerned, can't you put a removable pipe that goes down to the bottom of the kettle while transferring? Not sure you have to worry too much, but I would minimize as much as possible.

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Old 09-20-2011, 03:01 AM   #6
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As long as the worth is near boiling it should not be a consern
100-80C should be a pretty safe range atleast
76C and down would probably be the range where hot side aeration might become a problem

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Old 09-20-2011, 03:18 AM   #7
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I use a high temp hose, because I am a pathetic risk-averse homebrewer.

But- I brewed a brown ale about 5 weeks ago with NO HOSE ! I just let the tun drain into the kettle splishy splashy..

OMG - is this stuff gonna taste like jet fuel ? Early tastings indicate I am probably safe

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Old 09-20-2011, 05:07 AM   #8
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Quote:
Originally Posted by Goblism View Post
I am approaching my first all grain batch. I currently have 2 kettles, one is a 11 gallon that I installed a 1/2" valve on the bottom, the other is a 24 gallon with a pre-installed 2" valve. The valve on the large tun is some wierd firefighter type.[...]
Tri-clover valve, perhaps?


If that looks similar to what you have, check out brewershardware.com for fittings to use it. A transition fitting with clamp and you'll have no worries...

Cheers!
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Old 09-20-2011, 05:30 AM   #9
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Dr. Charlie Bamsforth talks about it on an episode of Brew Strong. I haven't listened to it yet, but I've heard Jamil mention on other episodes that it isn't much to worry about according to Dr. Bamforth. Gonna listen to that one soon.

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Old 09-20-2011, 03:22 PM   #10
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Here's a pretty interesting podcast that dantheman13 just mentioned on Hot Side Aeration..

http://thebrewingnetwork.com/shows/475

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