Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Do you always need a blowoff hose?
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Old 05-13-2012, 07:36 PM   #1
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Default Do you always need a blowoff hose?

I'm using 6 gallon better bottles and I'm finding that I always have to pop on a blowoff hose, even with regular non-hefe 5% ABV brews. Otherwise I will get junk blown up into the airlock.

Is that normal?


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Old 05-13-2012, 07:47 PM   #2
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In my experience it is with ales brewed at 66-70F. Or ower if a good healthy amount of yeast is pitched from a starter or re-hydrated. The quiicker the yeast can start fermenting,the more a blow off is needed.


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Old 05-13-2012, 07:49 PM   #3
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In all my years brewing, I've only needed to use a blowoff 3 times. And I brew a lot.
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Old 05-13-2012, 07:52 PM   #4
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I've noticed that at about 64F on down,the need for a blow off is less likely since the yeast are slower in fermenting that at a bit warmer temps. That's my observations to this point...
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Old 05-13-2012, 07:53 PM   #5
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Try fermenting a bit cooler then gradually raise the temp ifyou can. It has been working for me.
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Old 05-13-2012, 08:18 PM   #6
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I would say step your brews up, but my ceiling in the kitchen is now stained thinking I could do it (5gal batch and I left 1gal out for room, then added in that last gallon a few days later). But I still have faith that it'll work! However, I don't have guts and now have an 8gal fermenter...
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Old 05-13-2012, 09:25 PM   #7
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I have done only about 8 batches.

Only one needed a tube.
That one was a super hopped up IPA.
Luckily I caught it at the beginning and saved myself a big mess.

Just dealing with it once though, I may end up tubing more in the future.
Super easy to do from the start, and avoids a potentially huge mess.
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Old 05-13-2012, 09:31 PM   #8
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I've never waited until I need one but I use one anyway. I ferment in 7.5 gallon buckets so that's a lot of headspace. I've had active fermentations but only one that actually kicked out any material, and that wasn't very much. I figure, as long as I'm not doing any harm in using a tube, I may as well use one. Doesn't take much more setup.
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Old 05-13-2012, 10:36 PM   #9
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I use fermcap and use a tube on every batch. I've had to clean up after a couple, and don't want to do it again. If you get into the habit of using one every time, it's almost as easy as using an airlock.
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Old 05-13-2012, 10:50 PM   #10
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are you using an airlock like one of these?
http://www.ebay.com/itm/3-Piece-Ferm...item2315d7a930

http://www.ebay.com/itm/S-Shape-Ferm...item231d11f99e

whenever i tried using one of the 3 piece type ones, they got all gunked up. switched to just using 1/4" hose into a wine bottle with beach water. works as a blow off tube and an airlock. never had problems with them getting stopped up.


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