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Old 01-07-2009, 01:37 AM   #1
IwanaBrich
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Default Best way to aerate Wort?

What is the best way aerate the wort before fermenting? I've heard of stirring it up, using a air pump and I even saw a guy on the web use bottled oxygen or air. Is the bottled air safe? Seems like it could introduce bacteria or something?

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Old 01-07-2009, 01:39 AM   #2
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There's no "best way" it's brewer's preference. I us an O2 bottle with an airstone on a wand, and give it a 2 minute blast of air..it's a hellova lot easier than shaking or stirring...

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Old 01-07-2009, 01:42 AM   #3
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its just oxygen. I think aerating is important if you are doing full boil as the o2 is boiled out from what I read. For a partial boil I try to make as much splash as I can with the top off water or if you have a carboy and the wort is cool enogh you can just plug the opening and shake it roll it or pat it whatever you prefer.

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Old 01-07-2009, 01:43 AM   #4
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I remember reading somewhere that if you aren't using pure O2 and an airstone, then just shaking the crap out if it is just as good as pumping in regular air. I've pumped air through an aquarium pump with an aeration stone, and it seemed to me that shaking it worked just as well.

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Old 01-07-2009, 01:44 AM   #5
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Isn't pouring from the brewpot to the fermentor aerate well enough? Or perhaps we are talking about some other means of getting the wort from the brewpot to the fermentor?

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Old 01-07-2009, 01:45 AM   #6
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Quote:
Originally Posted by Eves View Post
Isn't pouring from the brewpot to the fermentor aerate well enough? Or perhaps we are talking about some other means of getting the wort from the brewpot to the fermentor?
Generally, it is. But if you're using a brewpot or keggle with a spigot and tubing, you don't get nearly enough aeration.
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Old 01-07-2009, 01:51 AM   #7
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Quote:
Originally Posted by Revvy View Post
There's no "best way" it's brewer's preference. I us an O2 bottle with an airstone on a wand, and give it a 2 minute blast of air..it's a hellova lot easier than shaking or stirring...
+1 You want the O2 in there and the bottle has more than the atmosphere and I am lazy.
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Old 01-07-2009, 01:54 AM   #8
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As Revvy indicated earlier, it's not so much a question of what's 'best' respective of another method but what's 'best' for the brewer.

For ease of construction and least effort on my part, you just can't beat this:

http://www.homebrewtalk.com/f51/cheap-easy-aeration-gadget-68218/

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Old 01-07-2009, 01:54 AM   #9
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Quote:
Originally Posted by IwanaBrich View Post
Is the bottled air safe?
This comes up occasionally. I have found a reference that says that bottled O2 is self sterilizing.

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Old 01-07-2009, 01:58 AM   #10
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I do partial boils, and fill my fermentor with 2 gallons of clean (boiled and cooled) water, then when I pour my wort in, I dump the break out and pour some back and forth as splashingly as possible. Hasn't let me down yet. If you pitch the proper amount of yeast at the start, aeriation is less important since the oxygen is mostly needed for yeast reproduction. At least, this is the way I understand it, but I am still a newbie myself.

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