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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Oxygenating the fermenter in the primary?
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Old 09-15-2012, 04:29 PM   #1
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Default Oxygenating the fermenter in the primary?

Im going to do my very 1st brew with a brewer's best ipa kit. I was watching a couple youtube videos and they will oxygenate with a drill and attachment or even a fish bubbler after transferring from the wort to the primary fermenter. This is done before adding the yeast. What do you guys think I should do?

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Old 09-15-2012, 04:36 PM   #2
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You can do the drill if you want but make sure you sanitize the heck out of everything. The drill bit that will come in contact with wort etc. I shake my carboys after I fill them half way (not as heavy) and then shake again when it's full. Shaking is the cheapest way to go but you can also do aeration stones with O2 canisters. If you are going to shake to get oxygen back make sure you do it for about 10-15 minutes maybe more. It takes a while for oxygen to get back in wort with shaking.

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Old 09-15-2012, 04:39 PM   #3
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The wort needs oxygen in it initially for the yeast to reproduce. Boiling the wort drives off all the oxygen so you need to put some back in. The easiest method is to splash the wort when pouring it and transfer it back and forth between the pot and your bucket a few times. If you are using a carboy you can shake it after the wort is in it. If you have a drill with attachment or a fish bubbler those work fine too. Another way is to use pure oxygen and inject it into the wort with a sintered stone. The method doesnt really matter as long as you get oxygen back into the wort.

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Old 09-15-2012, 04:40 PM   #4
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thanks for the quick response, does it make a difference? no carboy yet

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Old 09-15-2012, 04:43 PM   #5
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also will a sanitized blender work as well?

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Old 09-15-2012, 04:45 PM   #6
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It doesn't make a difference what means you use IMHO. The drill and aeration stone method make it quicker to get oxygen to the wort but I always shake. Whatever you feel like doing really, and is easiest for you. But make sure you sanitize the drill equipment if you are going to use it

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Old 09-15-2012, 04:46 PM   #7
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Yes, it makes a difference. The yeast won't be as stressed, will have less lag time, will not run out of juice and leave the beer finishing high.. A laundry list of things could happen, the majority of it being off flavors if you don't atleast get some O2 back into the wort before you pitch.

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Old 09-15-2012, 04:50 PM   #8
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If you're going to spend money, just get a small O2 tank from home depot and push pure 02 in there. Much, much quicker to get to the right O2 levels.

Search around and you'll see some simple methods of doing this. I push a piece of tubing on the valve, then through a piece of racking cane (as a stiffener), then onto an aquarium aeration stone.

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Old 09-15-2012, 10:23 PM   #9
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I use a large,fine mesh strainer on top of my fermenters (plastic pale & cooper's micro brew),& pour the cilled wort through it. I move the pouring spot around a bit to aerate it more. Dito with top off water.
Then I use my plastic paddle to stir vigorously for 5 minutes straight. Works great to aerate as well as mix the wort & top off water well for accurate hydrometer readings.
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Old 09-15-2012, 10:28 PM   #10
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We used to shake a carboy. We only broke 2 that way. I would NOT pick up a carboy with any liquid in it now. Look up images of Carrboy Cuts and you will not either. The Home Depot O2 method is the quickest and easy to do.

Remember the first three rules of Home Brew:
1. Sanitize
2. Sanitize
3. Sanitize

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