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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Pitching onto yeast cake
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Old 09-07-2013, 10:30 PM   #1
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Default Pitching onto yeast cake

I can't find anyone that agrees on this subject. Can you make a beer, put beer into bottling bucket, and then add new wort to the yeast cake? What is the best way to do this. Do you mix up the yeast? Etc


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Old 09-07-2013, 10:34 PM   #2
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It's pretty flexible when it comes to method... as long as you're sanitary about it you'll be fine. I've just poured new wort right onto a yeast cake a couple times - made great beer too


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Old 09-07-2013, 10:39 PM   #3
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I can't find anyone that agrees on this subject.
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Old 09-07-2013, 10:47 PM   #4
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An entire yeast cake would be overpitching and, therefore, is not best practice. Generally speaking, you only need about 1/4 of the cake for a proper pitch rate. Mrmalty.com has a nice calculator for figuring out how much you really need. Now, having said all the above, I've pitched directly on an entire yeast cake a couple of times and both turned out fine, but knowing what I do now, I don't think I'd do that again, as I know it's not good practice to do so.
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Old 09-07-2013, 10:52 PM   #5
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Pitch on the entire cake. If the beer tastes good to you, tell the internet about the benefits of pitching on a cake.
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Old 09-07-2013, 11:07 PM   #6
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An entire yeast cake would be overpitching and, therefore, is not best practice.
And like a lot of things homebrew verses craft brew...The odds we will actually overpitch with active live cells is pretty low. Not a myth, just overly hyped.
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Old 09-07-2013, 11:09 PM   #7
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The following is a list of professional breweries that pitch on a cake..............
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Old 09-07-2013, 11:19 PM   #8
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And like a lot of things homebrew verses craft brew...The odds we will actually overpitch with active live cells is pretty low. Not a myth, just overly hyped.
No, I'm pretty sure it would be overpitching. By a large margin. The real question is: How detrimental is overpitching to your beer?
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Old 09-07-2013, 11:33 PM   #9
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No, I'm pretty sure it would be overpitching. By a large margin. The real question is: How detrimental is overpitching to your beer?
It depends on the type of yeast. Neutral flavored yeasts are more tolerant to over pitching without undesirable results. Sure, you can pitch on a cake of s05 and it will probably be fine. I dare you to pitch on a full cake of T58.

Basically what it boils down to is this:

How important is saving $3-$7 on a 5 gallon batch of beer to you? This equates to a potential savings of 6-14 cents per beer. If this savings is worth the risk of losing 5 gallons of homebrew, go for it. You will probably make a good beer.
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Old 09-08-2013, 12:05 AM   #10
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If this savings is worth the risk of losing 5 gallons of homebrew, go for it. You will probably make a good beer.
I am sure it is possible to "lose" a batch do to overpitching but has anyone actually had this happen? I really am curious, not being snarky.


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