Oktoberfest---in a 5 Gallon Carboy??? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Extract Brewing > Oktoberfest---in a 5 Gallon Carboy???

Thread Tools
Old 02-11-2008, 09:43 PM   #1
Jan 2008
College Station TX
Posts: 14
Liked 1 Times on 1 Posts

OK Folks, I'm gettin' ready to brew a partial grain Oktoberfest, but have read in some interesting threads about the problem with lots of extract and the problem of BOOM--exploding fermenters.

I think I have a solution for mine, but wanted to make sure I was doing it right. I have a 5-gallon carboy, and I will hook up a 1 1/4 inch (outside diameter) hose as a blow off.

Here's the details of the ingredients:
3# Amber Extract
3# Pale Extract
2# Wheat Extract
1 1/2# Pilsner malt
1# Munich Malt
3/4# Dark Crystal Malt
Safale yeast
1 oz hallertaur (bittering)
1 oz hallertaur (flavoring)
1 1/4 # DME (priming)
OG 1.058
FG 1.014

Am I good to go with this set up, or should I stick with my 6.8 gallon bucket with a blow off hose?

Thanks for any and all input, suggestions, naysayers, soothsayers, doomsayers, etc!


Reply With Quote
Old 02-11-2008, 09:47 PM   #2
loopmd's Avatar
Jan 2005
Omaha, Nebraska
Posts: 657
Liked 7 Times on 4 Posts

I'd do the bucket with blow off hose as primary and then rack to the carboy for the secondary. 5 gallon carboy does not leave you with much headspace.


Reply With Quote
Old 02-13-2008, 01:04 AM   #3
SavageSteve's Avatar
Sep 2007
Posts: 987
Liked 9 Times on 6 Posts

I concur with loopmd in using the 6.8 gal. bucket, except that you shouldn't need a blowoff tube with that much headspace. Fermenters only go BOOM when something blocks the exit of CO2, usually blowoff material.

Plus, I'm assuming you will be fermenting this with a lager yeast at around 55 deg. F. I did an Octoberfest last year and never got more than about 1" of krausen at the peak of fermentation in a 6.5 gal. glass carboy.


Reply With Quote
Old 02-13-2008, 05:02 PM   #4
Jan 2008
College Station TX
Posts: 14
Liked 1 Times on 1 Posts

Actually, no, I'm fermenting with Safale 05, an ale yeast. my LHBS owner and I discussed and he suggested the ale yeast due to limitation of NOT being able to Lager at low temps... I can maintain a constant 65-68 degree fermentation temp but that is the lowest until I can create my own lager cellaring apparatus.
Tick Tock Tick Tock....It's five O'Clock (somewhere)!!

Gettin' Ready to brew: American Wheat (Extract)
Primary: Oktoberfest (PM)
Currently bottle conditioning: Extract Bock
What I'm Drinking: store bought brown ale...and can't wait for the next 10 days to roll by to start drinking the bock!!

Reply With Quote
Old 02-16-2008, 03:18 AM   #5
Sep 2007
Posts: 2,553
Liked 24 Times on 23 Posts

I'm sure it was a typo, but make sure you use no more than 1 1/4 cup of DME, not 1 1/4 # of DME for priming. I ferment all of my batches in 5 gallon carboys. Sure, the blowoff tube gets nasty, but I have never had a problem with exploding carboys.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
5 Gallon measurement height on a 6.5 gallon carboy 85 Haro Designs Beginners Beer Brewing Forum 15 02-20-2014 03:53 PM
WTB/WTTF: 6.5 Gallon Carboy/Better bottle (Have 5 Gallon Carboy in trade) Brewin06111 For Sale 3 10-24-2009 05:44 PM
Can I use a 5 gallon glass carboy as a primary for a 2.5 gallon batch bgough All Grain & Partial Mash Brewing 3 03-24-2009 05:41 PM
5 gallon batch - ok to secondary in a 6 gallon carboy? Jakobrau Beginners Beer Brewing Forum 5 10-23-2008 01:23 AM
2.5 gallon brew in 6.5 gallon carboy??? ethangray19 Beginners Beer Brewing Forum 2 09-01-2007 12:41 PM

Forum Jump