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Old 03-29-2011, 08:42 PM   #1
bmantzey
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I had an idea on a way to efficiently aerate my wort before pitching and I can't see a thing wrong with it, but I wanted to mention it to you all to see what you think of this idea.

I bought one of those high volume air pumps with a dual-action pump (blows air on the up stroke and the down stroke). The pump is meant to inflate large inflatable things such as air mattresses. It comes with various tips, one of which fits my tubing nicely.

What I've been doing is sanitizing my tubing and my racking cane really well, plugging my tubing into this high volume pump, sticking the sanitized racking cane down into the wort, and pumping like mad. It's definitely aerating the brew. It even gets to the point where it foams up so much that I have to give it a break and let the foam settle down.

The wort does not come back up into the tubing at all, so there's no feedback with this system. It just seems like such an efficient way to aerate, like it's too good to be true. Anyone have any comments on this technique?

Google: Ozark Trail High-Output Air Pump, click "Images" to see exactly which pump I'm using.

 
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Old 03-29-2011, 08:46 PM   #2
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I was going to say I would be worried about the oil but that is one of those raft pumps and they don't have any oil.

The only thing is that you are injecting atmospheric air into the wort and not pure oxygen. A lot of people do, so nothing to worry about. When I upgraded to aerating, I went the pure O2 route.

Interesting idea though and you burn some calories.
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Old 03-29-2011, 09:04 PM   #3
bmantzey
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lol yeah, it can be a little bit of a workout but I gotta earn my right to drink the beer and exercise is a good way to do that! haha!

Yeah, it's not an actual O2 injection system by any means. Maybe I'll put a plant next to the pump while I'm going at it. :P At any rate, it's certainly better than dumping from bucket to bucket or trying to stir it vigorously, or shake.

 
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Old 03-29-2011, 09:11 PM   #4
sketerbuck
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You might worry about pumping "dirty" air into your wort. You can buy a filter that goes in line with your tubing. IMHO its not as good as pure O2, but better than nothing.
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Old 03-29-2011, 09:13 PM   #5
bmantzey
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What would it take to get started with a pure O2 system?

 
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Old 03-29-2011, 09:16 PM   #6
BendBrewer
 
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An oxygen stone, an oxygen regulator and a tank of oxygen.
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Old 03-29-2011, 09:19 PM   #7
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I use one of these:



And got the O2 stuff at HD in the form of a Brazing Kit:

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Old 03-29-2011, 09:35 PM   #8
bmantzey
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Now that I think about it, I can definitely see the concern about the dirty air. Yeast cells are microscopic and my kitchen isn't the cleanest place in the house. I can definitely see some rogue yeast cells getting in there causing trouble. I'll probably spray the air with some Lysol and find a filter.

 
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Old 03-29-2011, 09:41 PM   #9
BendBrewer
 
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I drink beer in the 2 minutes it takes my fermenter to fill up with aerated wort. Sure beats shaking or pumping up a River Raft.

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Old 03-29-2011, 09:43 PM   #10
bmantzey
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btw, what's an oxygen stone? Google wasn't very helpful there, neither was wikipedia.

 
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