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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Question about aerating Wort with air pump and stone
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Old 09-22-2010, 08:42 PM   #1
JeffBeck
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Default Question about aerating Wort with air pump and stone

After I cool down wort and before I pitch yeast how long should I run an air pump with a line and aeriation stone on it in the wort.

thanks

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Old 09-22-2010, 08:43 PM   #2
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What's your OG?

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Old 09-23-2010, 12:03 AM   #3
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Doing my boil now,

1st runnings were 1.059

6.25 gal reading was 1.040

OG after boil is supposed to be approx 1.051

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Old 09-23-2010, 12:51 AM   #4
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I'd go a just a minute on it.

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Old 09-23-2010, 01:31 AM   #5
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Are you making an ale or a lager? What size is your stone?

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Old 09-23-2010, 01:49 AM   #6
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GUINNESS CLONE

Small 1 inch round stone

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Old 09-23-2010, 02:00 AM   #7
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I've never used pump, but the times I've seen mentioned are usually as long as an hour - don't forget that the atmosphere is not pure O2. It's 1 minute or so with a tank of pure O2 (that's what I use when I aerate) and a stone. Several recent things I've read suggest that shaking is as effective as using the aquarium pump set-up.

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Old 09-23-2010, 02:17 AM   #8
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1 minute or 1 hr?

This is just a fish aquarium pump and stone, no O2.
Pouring back and forth 2 times from boil kettle to fermenter bucket is what I have done in the past. it seem to work but I wanted to better it.

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Old 09-23-2010, 11:40 PM   #9
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Quote:
Originally Posted by JeffBeck View Post
1 minute or 1 hr?

This is just a fish aquarium pump and stone, no O2.
Pouring back and forth 2 times from boil kettle to fermenter bucket is what I have done in the past. it seem to work but I wanted to better it.
1 minute with a pump gets you dirty stone and line to clean but will do almost nothing for the wort. Your current method is far better.

1 minute is for the pure O2 method.
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Old 09-24-2010, 05:43 PM   #10
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I have an aquarium stone, and aerate for 5-10 minutes while I'm cleaning up and putting things away. Works for me.

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