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Old 01-24-2011, 12:31 AM   #1
dmfa200
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Default Ran out of Oxygen

I normally aerate with pure Oxygen and I ran out and didn't realize it.
When I transfer my wort from the kettle to the fermenter I just let it drain straight in from a fall of about 2ft and it creates a lot of agitation.
I also shook it for a couple of minutes. Will this introduce enough Oxygen to ferment well?

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Old 01-24-2011, 12:37 AM   #2
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Well it's not as ideal as using pure O2 but it will work...Something similar happened to my last brew. The airstone blew off the tubing and into the carboy. I just shook it really well and called it good. I still had a vigorous fermentation and hit my FG.

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Old 01-24-2011, 01:12 AM   #3
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Until very recently, the concept of using oxygen to prime wort was unheard of. Somehow, for the last few millennia, beer has been made. You will be just fine, I promise.

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Old 01-24-2011, 10:00 AM   #4
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Why would you think that you don't have enough oxygen introduced after a free fall and shaking?

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Old 01-24-2011, 10:59 AM   #5
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I dunno.
I'm just being paranoid, but my brew day went perfect up until that point.
I brewed a Two Hearted clone and want it to come out spot on, and I'd be very disappointed if it doesn't.

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Old 01-24-2011, 11:55 AM   #6
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Default Update

Checked the fermentor.
12 hours after pitching 2 quart starter harvested from from Bell's Pale Ale, and I already have over an inch of krausen!
I'm definitely gonna need a blow off tube.
So far I'm battin a 100!

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Old 06-28-2012, 11:13 PM   #7
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According to Jamil and chris white's book yeast, optimal oxygen levels is 8-10 ppm. the book also did an experiment of shaking a carboy of wort for 5 minutes and determined that the oxygen level was 2.71.

Also, here is a post from wYeast Labs that describes oxygen levels of wort:
http://www.brew-monkey.com/brewschool/oxygenation.php

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