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Aeration of unpitched wort with an aquarium air pump

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Nightfalke

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Post Wed Dec 03, 2008 8:07 am

Aeration of unpitched wort with an aquarium air pump

So I want to start giving my yeasties a bit more oxygen, and the cheapest way it seems to do that is to use a cheap aquarium pump and a diffusion stone.
Is that all I need?
Do I need a filter on my air line?
How long should I aerate for?

Thanks in advance.
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babalu87

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Post Wed Dec 03, 2008 8:38 am

Re: Aeration of unpitched wort with an aquarium air pump

I've been stuffing a bunch of cotton balls on the air-intake of mine and running it into a bucket of star-san for 5 or 10 minutes before putting it in the wort.

So far so good but I did ask Santa for those in-line filters NB sells :mrgreen:
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mgbrewing

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Post Wed Dec 03, 2008 9:22 am

Re: Aeration of unpitched wort with an aquarium air pump

I got the NB aeration kit last year from santa, which includes the in-line filter. Its been working great for me. I usually aerate for 10 to 15 minutes, then pitch.
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azeeb

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Post Wed Dec 03, 2008 7:06 pm

Re: Aeration of unpitched wort with an aquarium air pump

In my opinion, the mix-stir is cheaper / easier / faster / better. Hook it up to a cordless drill and whip the wort for a minute or so. I have used both methods, and I am much happier with the mix-stir.

http://pivo.northernbrewer.com/nbstore/action/search-do?searchTerm=mix+master&x=0&y=0
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TG

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Post Wed Dec 03, 2008 7:46 pm

Re: Aeration of unpitched wort with an aquarium air pump

And if you get one of those little red oxygen cylinders from HD or Blowes, the Mix-stir will stir it in in no time.
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kenc_zymurgy

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Post Wed Dec 03, 2008 10:49 pm

Re: Aeration of unpitched wort with an aquarium air pump

babalu87 wrote:
So far so good but I did ask Santa for those in-line filters NB sells :mrgreen:


And once you have the filter, you can do the trick with the carboy cap to start a siphon (using pump or lungs).

-kenc
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ChaunceyO

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Post Mon Dec 08, 2008 1:24 pm

Re: Aeration of unpitched wort with an aquarium air pump

Just a word of warning.

My last batch went well right up to the time that I was going to aerate it with an aquarium pump/filter/stainless stone. After many successful sessions, it suddenly did not work. I checked all the connections, and there was definitely air coming out of the pump. I can only guess that somehow I got water (or star-san solution) in the hose that feeds the stone. I surmise in restrospect that it was a hydrostatic lock in that the pump is not powerful enough to push liquid through the stone. Don't know for sure, just a guess. I abandoned my efforts for that batch and just pitched my yeast. Luckily it was starter, and I had used a wort sprayer when I filled the fermenter, so I had liftoff in short order.

I later took the whole thing apart, and shook the tubes, and now it works.
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Denny

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Post Mon Dec 08, 2008 1:32 pm

Re: Aeration of unpitched wort with an aquarium air pump

azeeb wrote:In my opinion, the mix-stir is cheaper / easier / faster / better. Hook it up to a cordless drill and whip the wort for a minute or so. I have used both methods, and I am much happier with the mix-stir.

http://pivo.northernbrewer.com/nbstore/action/search-do?searchTerm=mix+master&x=0&y=0


Totally agree!
Life begins at 60....1.060, that is.

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NaughtyDog

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Post Mon Dec 08, 2008 2:36 pm

Re: Aeration of unpitched wort with an aquarium air pump

Denny wrote:
azeeb wrote:In my opinion, the mix-stir is cheaper / easier / faster / better. Hook it up to a cordless drill and whip the wort for a minute or so. I have used both methods, and I am much happier with the mix-stir.

http://pivo.northernbrewer.com/nbstore/action/search-do?searchTerm=mix+master&x=0&y=0


Totally agree!


I am looking at a different option to aerate my wort and would like to know which one would you recommend, the plastic or the S/S?
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Denny

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Post Mon Dec 08, 2008 2:52 pm

Re: Aeration of unpitched wort with an aquarium air pump

I've only used the plastic one and it works fine.
Life begins at 60....1.060, that is.

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azeeb

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Post Tue Dec 09, 2008 6:02 am

Re: Aeration of unpitched wort with an aquarium air pump

I've got the plastic one too.
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NaughtyDog

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Post Tue Dec 09, 2008 8:05 am

Re: Aeration of unpitched wort with an aquarium air pump

Denny wrote:I've only used the plastic one and it works fine.
azeeb wrote:I've got the plastic one too.


Thanks for your input guys I will purchase the plastic one.
On Deck:
Primary:
Secondary: Altbier, Kölsch, Czech Pilsner, Bohemian Dunkel
Kegged: Helles, Munich Dunkel, Weissbier, N.E. Brown Ale, DC's Rye IPA
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glitterbug

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Post Tue Dec 09, 2008 11:31 am

Re: Aeration of unpitched wort with an aquarium air pump

http://www.wyeastlab.com/hb_oxygenation.cfm

Looks like spashing\shaking for 40 secs is the same a running an aquarium pump for 5 minutes. The mix stir looks like a solid investment.
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yugamrap

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Post Wed Dec 10, 2008 3:53 pm

Re: Aeration of unpitched wort with an aquarium air pump

The mix-stir works great for me, too. I primary in the 7.9-gallon buckets, so the only issue is to remember to be careful not to splash wort all over the place. It's not a problem for the wort, but it's a pain to clean up. I try to hold the bucket lid over the top of the bucket while using the mix-stir to keep splashing out of the bucket to a minimum.
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NaughtyDog

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Post Wed Dec 10, 2008 4:24 pm

Re: Aeration of unpitched wort with an aquarium air pump

One more question before I take the leap and purchase the mix-stir. Will it fit in the neck of a 6 or 6.5 gallon glass carboy? Thanks!
On Deck:
Primary:
Secondary: Altbier, Kölsch, Czech Pilsner, Bohemian Dunkel
Kegged: Helles, Munich Dunkel, Weissbier, N.E. Brown Ale, DC's Rye IPA
________________________________________________
Woof
-Bill H.-

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