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Old 11-21-2008, 01:22 AM   #1
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Default using O2 to aerate

How long do you aerate using pure O2 through a stainless air stone befor pitching? I've been using an air pump and filter but just got an O2 regulator. Do you still use the filter when using O2

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Old 11-21-2008, 01:23 AM   #2
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I use the 02 bottle with a filter and a stone....I give it a 2 minute burst of O2.

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Old 11-21-2008, 11:04 AM   #3
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+1 Same here, I usually turn on the O2 while i'm getting the yeast packet and airlock ready. 2 to 3 mins and it's ready to roll.

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Old 11-21-2008, 12:58 PM   #4
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why the filter? I soak my stone and O2 line in Starsan and use it that way.

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Old 11-21-2008, 04:28 PM   #5
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because the oxy tank is design for welding not breathing so who knows what particles are in there.

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Old 11-21-2008, 04:40 PM   #6
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because the oxy tank is design for welding not breathing so who knows what particles are in there.
Yeah because welders don't mind if their gas is contaminated. Oxygen generators for home use like mom had when she was fighting lung cancer only produce 94% pure O2 for breathing. You can damn sure bet that industrial users of gas want gas that is much purer. I wouldn't sweat it.
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Old 11-21-2008, 04:48 PM   #7
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I let it go for about 3-5 min myself. I get the O2 from The Home Depot and I have yet to use an air filter on my aerator and I am still alive and the Beer still tastes good. Does the Filter really make that much of a difference?

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Old 11-21-2008, 05:10 PM   #8
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I let it go for about 3-5 min myself. I get the O2 from The Home Depot and I have yet to use an air filter on my aerator and I am still alive and the Beer still tastes good. Does the Filter really make that much of a difference?

I dunno....mine came with it. I actually use it as the point where I dissasemble the wand/hose from the rest of the unit for storage.
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Old 11-21-2008, 07:36 PM   #9
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From Wyeast (Wyeast Laboratories. Customer Service FAQs):

Optimal O2 levels are 10-15ppm and to achieve 12ppm you should use O2 through a stone for 1 minute.

Be careful, you can over oxygenate.

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Old 11-22-2008, 03:44 PM   #10
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Wow thanks. I have been using pure O2 through a stainless air stone as well from a hospitable grade tank w/reg and I was just wondering how long to aerate. However, I may have been over oxygenating by letting it go for a little long but not to long because it starts to foam and I didn’t think that was too good.

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