Kealia wrote:Now you're asking three questions that are very divisive in the homebrewing community:
1) Is it OK to leave beer on the trub for more than 3 weeks?
2) Is a secondary really neccesary?
3) Is bottle conditioning any better/worse than bulk conditioning in a fermenter?
All three of these questions have people on both sides of the fence that believe their way works for them. So I won't say that there is a "right" answer to any of them. There is only what is right for you.
For example, I have no issues leaving my beer on yeast for 4-5 weeks if my schedule gets crazy. There are those that have left their beer on for months without issue. The threat of autolysis is believed to be somewhat of a myth at this point given the homebrew scale. But there are still those that believe that anything more than 3 weeks is bad and that's how they brew. And it works for them so who can say they are right or wrong?
I don't believe that secondaries are needed unless there are major additives like fruit, or unless you need to age/lager for months at a time. The 'need' for a secondary is related to the above point(s). Again, there are some that use secondaries and make great beer, along with those of us that don't and believe that we too make great beer.
Finally, some believe that aging in bulk provides more benefits that aging in bottles. I disagree. I've tried both and not noticed any difference at all. The argument for aging in bulk is somewhat based on the claim that more yeast = better aging. But to me that doesn't make sense because once you bottle you dilute both the yeast and the volume of beer but the ratio (in my mind) between the two stays relatively the same.
So that's a long winded way of saying that these are answers you'll have to come to on your own young Padwan. While there are some absolutes in brewing (like sanitizing being critically important), there are far more grey areas that each brewer must investigate on his/her own to learn what works for them to produce beer that they like.
I can tell you that even though Gymrat and I disagree on a few process things (like time on the yeast cake), I have a lot of respect for him as a brewer and have no doubts that he produces stellar beer (you'll find him to be quite knowledgeable). It simply means that we each use different processes that work for us.
Cheers.
edit: multiple typos
FWIW, I am mostly in agreement with Kealia here on things. I've left stuff some big beers in my primary fermenters for 4-5 weeks too, and had no issues whatsoever.
I would just say that RE: "Bulk Aging" it depends on how you define that. I find that leaving my beer in my LBK/LBC until the fermentation created off flavors/compounds such as acetaldehyde and diacetyl are cleaned up to be something that works faster/better then relying on this to happen in the bottle. I find the big yeast cake does a better job of that. But this is NOT secondarying, and not what most folks refer to as "Bulk Aging", and not "equal in proportion"... its not really what Kealia is referring to here I think, I think he's talking about bulk aging in an actual secondary for a month. I'm talking about leaving it for a few extra days or a week on the original yeast cake from when the fermentation is done from a FG standpoint. Like Kealia says, this is not always needed, it just depends on what you brewed, what yeast you used, pitching rate, temps, other things. This goes back to that "when is it done" conversation, in some cases my hydro may say it's done in 5 days but I don't' bottle it until 10+ days, or 14 or whatever fits my schedule best. I don't stress about how long it sits too much.
One thing to always keep in mind is that much of the early homebrew wisdom was based on how it was done in big Macro breweries. But you do not own a floor to ceiling fermenter in your warehouse that puts tremendous pressure on the yeast cake. If you did, then yes, leaving it on the yeast cake could be a very bad thing. Same concept for HSA, you are not pumping hot wort through hundreds of feet/yards of pipe. Stuff like that matters in the scope of things, and lots of us have found that at our scale these things do not really matter as much.
But like he said, we all do what makes beer that we like, and if something seems to make beer that you like better then by all means do it.