Best angle for a blow off tube? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > General Beer Discussion > Best angle for a blow off tube?

Thread Tools
Old 12-11-2012, 04:48 AM   #1
Oct 2009
Logan, UT
Posts: 431
Liked 2 Times on 2 Posts

Is it best to have a blow off tube at the same level as the fermenter, above, or below?

Never worried about it before but I'm afraid this batch is gonna blow without the right setup.

Reply With Quote
Old 12-11-2012, 04:51 AM   #2
Jul 2009
Posts: 5,068
Liked 265 Times on 226 Posts

have your blow-off bottle lower than your fermenter, if possible. you want gravity to pull the excess foam down out of the tube
There is no "i" in denial.

Reply With Quote
Old 12-11-2012, 05:01 AM   #3
Golddiggie's Avatar
Dec 2010
Posts: 11,995
Liked 495 Times on 431 Posts

ALWAYS have the bucket lower than the fermenting vessel. IF at all possible, put the bucket/bottle/etc. on the floor. You do NOT want to get the stuff from the blowoff bucket back into the fermenting vessel.

At most, I've used a milk crate to lift my blowoff bucket so that the tubing was going into the sanitizer solution (Star San). If the tubing was longer, or not so twisted, I would have put it onto the ground. This was taking a feed off of a 1/4 barrel (tall) fermenting keg. So the tubing was about 24" above ground level. The bucket, and end of the hose, was about 12-16" above the ground.
Hopping Tango Brewery

跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se

On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
K2: Epic mead
K3: TripSix
On Deck: Caramel Ale
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine

Reply With Quote
Old 12-11-2012, 02:11 PM   #4
Heavyweight homebrewing author & air gun shooter
unionrdr's Avatar
Feb 2011
Sheffield, Ohio
Posts: 38,978
Liked 3692 Times on 3172 Posts

Ime,the end of the blow off tube needs to be lower than the airlock placement. works fine every time.
NEW books on amazon/Kindle! Check it out now...
Home Brewing-
Distopian Sci-Fi-
New! John Henry-

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Angle Iron vs. Square Tube? splobucket Brew Stands 35 12-18-2012 04:03 AM
Blow off tube..or blow off tube then airlock. BeerEngineer11 Fermentation & Yeast 10 06-06-2012 04:27 AM
Right angle blow-off or airlock? kerklein2 Equipment/Sanitation 7 10-26-2009 12:52 AM
blow off tube aekdbbop Equipment/Sanitation 9 02-10-2007 02:06 PM
Blow-off tube came out nitro4040 General Techniques 3 09-13-2006 03:49 AM

Forum Jump