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Old 10-30-2007, 11:51 PM   #1
kriso77
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Default How much time is needed for aeration?

I'm sure it depends on the brew, but I'm trying to get a general rule of thumb for how long I should aerate my wort. I have been taking the "shake the carboy" road. I just finished my 2nd batch. I shook the wort in the carboy for about 2 minutes and then another minute or so after the yeast was added. My first batch was a bit esthery, due to warm weather and under aerating. I'm trying to avoid that for future batches.

Thanks!

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Old 10-31-2007, 12:04 AM   #2
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If you shake you have to shake for more than 10 minutes. If you use an aquarium pump with an airation stone you can let that run for 15 minutes to a half hour. If you buy a pure o2 system it can be fully airated in 20 to 30 seconds, you just pump pure o2 into your beer.

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Old 10-31-2007, 12:36 AM   #3
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10 minutes? I have only shaken for 30 seconds to a minute before and after pitching. I use bottled water and haven't had a problem yet. Granted I have only made 4 batches, but no problem yet

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Old 10-31-2007, 12:39 AM   #4
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Quote:
Originally Posted by Brewno
10 minutes? I have only shaken for 30 seconds to a minute before and after pitching. I use bottled water and haven't had a problem yet. Granted I have only made 4 batches, but no problem yet
Did you find that your beers took on a fruity flavor? In my case my first brew was a Bavarian Wheat beer that tasted like sour bananas. Granted, I think the sour part is just because its young. I'm just hoping the 2nd batch comes out a little more balanced.
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Old 10-31-2007, 12:46 AM   #5
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Well, besides shaking there are a few other things that help. One is if you are using top off water. I used cool tap water to top off to 5 gallons, and because I have good water, I used the aerator on my sink to spray it in. It worked great! Then, after I started doing full boils (but before I bought the aquariaum pump), I used the splash method. Rack until I can lift the pot (I'm a bit of a weakling) but while racking splash the wort into the fermenter. Then, when I can lift the pot, pour through a strainer and splash like crazy. It worked very well for me, since I weigh 135 pounds and cannot shake a full carboy.

My AG method is very similar now- splash while racking and pouring, then run the aquarium pump while I clean up. But it worked well before the pump, too.

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Old 10-31-2007, 12:57 AM   #6
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i have oxygen tanks and a regulator and was wondering if this would be a good idea to use? its the type people use to hook up to their nose when they need forced oxygen. if its a good idea to use it how long should i run it?

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Old 10-31-2007, 01:06 AM   #7
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...or just get a siphon sprayer, like this:



I attach mine to the spigot on my kettle, but you could siphon out of a kettle too.

I get plenty of "splashing" with this thing...look at the foam.

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Old 10-31-2007, 01:08 AM   #8
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Quote:
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i have oxygen tanks and a regulator and was wondering if this would be a good idea to use? its the type people use to hook up to their nose when they need forced oxygen. if its a good idea to use it how long should i run it?
You'd really need a diffuser stone to get the bubbles small enough to dissolve into the wort. Some tubing and a diffuser stone would work.
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Old 10-31-2007, 02:06 AM   #9
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I shake for 3-5 minutes and find it works just fine.

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Old 10-31-2007, 02:10 AM   #10
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You might also take a look in the kitchen drawer and haul out your whisk.

I splash/pour the wort from the cooled brew kettle to the fermenter then chastise it firmly with a large balloon whisk. My last batch looked like a cappuccino after just a couple of minutes. It's pretty darn effective.

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