Secondary, why do it?

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BrianEichhorn
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Secondary, why do it?

I wanted to get some discussion going on the idea behind secondary usage and why you shouldn't use one the majority of the time and see what your thoughts are.

So, I hear a lot about how someone has just racked their beer to secondary, usually within a week or two of brewing. Why are you doing this? I ask because there are many issues to take into account every time that you do something with your beer. 

The first reason to avoid racking to secondary is pretty straightforward: you are introducing oxygen with each transfer. As the beer ferments, it is producing CO2 which acts as a protective cover for the beer as it sits in the primary, particuarly with an airlock. In transferring the beer, you are driving out this CO2 and allowing it to mingle with the air to reach equilibrium, which increases oxygen exposure. This is the easiest reason to describe. If you are kegging your beer, there is really no need to do a true secondary as you are holding the beer in a separate vessel to allow for settling out. If you bottle, I'd suggest just transferring to the bottling bucket a day or two prior to bottling and adding finings to aid with reduction in particles in solution.

The bigger reason, overall, though is that often times brewers don't leave their beer in contact with the yeast long enough to finish it's work. Producing alcohol is only a small part of the equation. The yeast also produces esters, phenols and aldehydes, as well as other troublesome byproducts such as DMS or diacetyl. The yeast will clean up after itself if you give it a chance. Most beer in the homebrew scale should remain on the yeast 2-3 weeks. Once it is done, it will drop out. Fear of autolysis shouldn't really be an issue if you are using healthy yeast to begin with. It takes longer than 4 weeks in a stressful environment before you should ever have to worry about the yeast autolysing. 

So, what are your thoughts?

JasonW
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But Craig, as your quote says

But Craig, as your quote says, using secondary or not is not really a factor in how clear your beer is (all things being equal). I used a secondary for probably 12 years, because that was what I was taught, and what everyone did back then. At this point, I only do primary to save time. I don't recall any problems with oxidation or taking the beer off the yeast too soon. I've definitely not had any significant Autolysis since going primary only either. So I guess my opinion is it isn't a big deal either way, and I just prefer to save the time. Brewing beer takes long enough already :)


ChuckMac
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For me it depends on the beer

For me it depends on the beer and the mood I am in...

My stouts, browns, porters and scottish ales I will usually rack to a secondary. But, only after they have been in primary for a month to make sure the yeast has done its job.

My Ipa's, Creme Ales and lagers, I usually just rack those straight to my cornies and put them under about 10 psi of Co2 to make sure my cornies are not leaking. My lagers will sit for 4 to 6 weeks before I charge the corny with Co2 at 30 psi for carbonation. my ales about 2 weeks before I do the same.

I know this sounds assbackwards, lighter beers no secondary, dark beers in secondary, but my darks are usually higher in alcohol...   

BrianEichhorn
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I definitely understand this

I definitely understand this argument and will never fault a brewer for what works for them. That's really what it all comes down to. My biggest concern is pulling the beer too soon, prior to it truly finishing up. I will say that different yeasts can benefit from racking due to levels of flocculation, etc. 

Craig Koszewski said:

Hey guys, I figured I'd throw in my 2 cents and give you a bit from John Palmer's book.  I use a secondary 95% of the time, and it's only if I can't find the time that I let it sit too long in the primary.  I am not a yeast guy, I typically use 1056 and try to stay away from any really bold characteristics.  For that reason and that I want my beer as clear as possible, I use a secondary.  There are 3 main ways I make sure you have a really clear beer:

1. a fast "cold break" after the boil, if you cool the beer slowly it can cause a "chill haze".

2. Irish Moss or Whirlfloc Tablets, add these to the last 20 min of a boil, it will attract large proteins

3. Racking into a secondary to ensure that most sediment is removed from the beer.

This is directly from Palmer, John J. (2006-06-25). How to Brew

"There has been a lot of controversy within the homebrewing community on the value of racking beers, particularly ales, to secondary fermenters. Many seasoned homebrewers have declared that there is no real taste benefit, and that the dangers of contamination and the cost in additional time are not worth what little benefit there may be. There is a risk tradeoff between letting the yeast finish the job and getting the beer off the trub. The dormant yeast on the bottom of the fermenter will excrete undesirable amino and fatty acids. Leaving the post-primary beer on the trub and yeast cake for too long (more than a month, for example) can result in soapy flavors in the beer due to oxidation and other chemical reactions. Further, after very long times, the yeast may begin to die and break down—autolysis, which produces meaty, sulfuric tastes and smells. Depending on the yeast strain, wort composition, fermentation conditions, and phase of the moon, it may be necessary to get the beer off the trub and dormant yeast during the conditioning phase. However, now that you have been duly warned, I will say that I routinely leave my beer in the primary for three to four weeks, due to lack of time, clean bottles, and a sanitized siphon, without any problems."

JimChochola
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I did it on my very first

I did it on my very first batch but it was because I had no idea what I was doing. e.g., I saw "California *Lager*" for the ingredients which came with a complete beer brewing kit I got for Christmas and thought it was a true Lager (i.e., cold ferm temps; long cold storage). The directions suggested a secondary so I did it. Haven't done it since, though.

lagerdan
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I stopped doing one also...+1

I stopped doing one also...+1