very strange question.... - Home Brew Forums
Home Brew Forums > Home Brewing Beer > General Beer Discussion > very strange question....

Reply
 
Thread Tools
Old 09-01-2011, 12:37 AM   #1
bengerman
Recipes 
 
Feb 2011
Redmond, Washington
Posts: 718
Liked 14 Times on 12 Posts



What is the SMALLEST batch i could do in a 5-gallon fermentor?
i know you don't want too much headspace in a carboy, but how much is too much?
i'd like to get a batch going, but i want to do it BIAB and get as close to a full-size boil as i can.



 
Reply With Quote
Old 09-01-2011, 12:48 AM   #2
edb23
Recipes 
 
Jul 2010
Pittsburgh
Posts: 467
Liked 19 Times on 10 Posts


in your primary fermenter head space is preferred because it will cut back on the chance of blowoff and initially o2 is beneficial to fermentation, eventually the CO2 production of the yeast will force any oxygen out. I'd go as small as you want, don't foresee a problem just make sure you keep it closed tight with an airlock full of sanitizer solution or cheap vodka


__________________
it is the drink of men who think
and feel no fear nor fetter
who do not drink to senseless sink
but drink to think the better

 
Reply With Quote
Old 09-01-2011, 12:54 AM   #3
bengerman
Recipes 
 
Feb 2011
Redmond, Washington
Posts: 718
Liked 14 Times on 12 Posts


so it's only if i were to secondary i'd have to worry?
i'm not thinking like 1 gallon or anything insane like that, maybe a 3.5 or 4 gallon batch.

 
Reply With Quote
Old 09-01-2011, 12:59 AM   #4
Celticway
Recipes 
 
Mar 2011
Lawrenceville, GA, GA
Posts: 333
Liked 6 Times on 6 Posts


You are totally fine with 2 or 3 gallons in a 5 gal carboy. No problem.

 
Reply With Quote
Old 09-01-2011, 12:59 AM   #5
beerloaf
HBT_SUPPORTER.png
Recipes 
 
Feb 2011
Boise, Idaho
Posts: 619
Liked 18 Times on 18 Posts


You will be fine with a 3-4 gal batch without any issues. As stated above, the CO2 produced during fermentation will force out all the O2 left in there. Now if you do the same in a secondary, you may have oxydizing issues since you won't have as much CO2 produced.

beerloaf
__________________
A 2006 study found that the average American walks about 900 miles a year.

Another recent study found that Americans drink an average of 22 gallons of beer a year.

That means, on average, Americans get about 41 miles per gallon.

Not bad.

 
Reply With Quote
Old 09-01-2011, 01:03 AM   #6
edb23
Recipes 
 
Jul 2010
Pittsburgh
Posts: 467
Liked 19 Times on 10 Posts


secondary wont cause any problems with a four gallon batch, but don't even bother with one. Take the amount of time you would put it in the secondary, and leave it in the primary on the yeast cake instead. After yeast are done they will eat up any undesirable byproducts of fermentation. Leaving the beer in primary will most likely give you better results, and if you're careful when racking to the bottling bucket the effect on clarity of long aging will be the same either way. so go ahead and just brew it and leave it in primary.
__________________
it is the drink of men who think
and feel no fear nor fetter
who do not drink to senseless sink
but drink to think the better

 
Reply With Quote
Old 09-01-2011, 01:44 AM   #7
beergolf
HBT_SUPPORTER.png
 
beergolf's Avatar
Recipes 
 
Jan 2011
collingswood, nj
Posts: 5,842
Liked 1129 Times on 771 Posts


Since I rarely secondary I use my 5 gal carboys for brewing now. I do a lot of 4 gal batches. orks great for bigger brews that need a lot of time. I don't tie up one of my fermenters for a long ferment..."..

 
Reply With Quote
Old 09-01-2011, 01:48 AM   #8
bengerman
Recipes 
 
Feb 2011
Redmond, Washington
Posts: 718
Liked 14 Times on 12 Posts


Quote:
Originally Posted by edb23 View Post
secondary wont cause any problems with a four gallon batch, but don't even bother with one. Take the amount of time you would put it in the secondary, and leave it in the primary on the yeast cake instead. After yeast are done they will eat up any undesirable byproducts of fermentation. Leaving the beer in primary will most likely give you better results, and if you're careful when racking to the bottling bucket the effect on clarity of long aging will be the same either way. so go ahead and just brew it and leave it in primary.
i never have secondary'd, and don't plan to any time soon. just confirming where too much headspace could be a real issue.

 
Reply With Quote
Old 09-01-2011, 06:51 AM   #9
brian74
Recipes 
 
Oct 2010
Tyler, TX
Posts: 183
Liked 5 Times on 5 Posts


I did a 2.5 gallon batch last year with a 5 gallon carboy...no problems. I only did primary.


__________________
AKA Brewass

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange find Chester General Beer Discussion 176 01-02-2012 08:56 PM
Strange Question To Ask Group.... brewagentjay General Beer Discussion 34 04-06-2010 07:55 PM
This Is Strange uechikid General Beer Discussion 5 04-02-2010 05:55 PM
Too Strange.. even for me hankisanerd General Beer Discussion 22 09-19-2009 01:04 AM
this is strange, hammer1 General Beer Discussion 4 04-20-2009 05:09 AM


Forum Jump