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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > carboy never gets full enough to use blow off
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Old 12-18-2008, 02:57 AM   #1
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Default carboy never gets full enough to use blow off

so I've been brewing for almost a year and have well over a dozen batches under my belt but not once has my 6.5 gallon carboy even come close to overfilling

I want to use a blow off to get rid off all that nasty stuff

I've tried increasing the fermentation temp to 78 and also yeast nutrient but no change - Also i have used several different stains of dried yeast and even one batch using liquid yeast - and i used a yeast started once

is there anything else i can do besides increasing my batch size up from 5 gallons??

Thanks all!!!

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Old 12-18-2008, 02:59 AM   #2
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Brew a Heffe... that should do the trick. Many beers do not blow off. Remember, when it blows off, you are blowing off some yeast too.

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Old 12-18-2008, 03:01 AM   #3
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If you're fermenting on the cool side, it will be quieter. Aim for the high side and you'll blow providing your gravity is up around 1.050 or so.

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Old 12-18-2008, 03:07 AM   #4
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I think I'm confused. Why is it so important to "get rid off all that nasty stuff"? Doesn't it just drop down to the bottom some time after fermentation is done? I don't rack to secondary so I typically just leave it in the primary for 3 weeks and have never seen much "nasty stuff" on top when I do bottle. OK...there was that time I made a raspberry wheat and those raspberries were all floating at the top (looked like cherrios). But other than that the nasty stuff all just drops to the bottom.

Have I just been lucky?

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Old 12-18-2008, 03:11 AM   #5
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It all drops out...

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Old 12-18-2008, 03:13 AM   #6
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I just did my second beer that was an alt, used Wyeast 1007 smack pack with no starter (the packet was only 4 days old). Pitched it at 80 degrees (it was late and I had early work in the morning). 36 hours later my airlock was taken over by krausen, and I had to switch it over to a blow tube. It was a 5.5 gallon recipe though. (Target OG 1.054, I think I read it at 1.047). So my suggestion is bump up your recipe to 5.5 and use liquid yeast.

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Old 12-18-2008, 03:22 AM   #7
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Some argue that Krausen can cause beer headaches or hangovers but that seems a bit much. I mean even a small quantity of beer can cause a small hangover so whats the difference?

Alcohol dehydration, other elements in the beer that causes headaches, etc... I don't know if there is a big flavor advantage to skimming the Krausen but it doesn't seem to be that big of deal.

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Old 12-18-2008, 03:29 AM   #8
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I've done well over 250 batches using a 6.5g carboy as a primary, and I've only had one that needed a blow off during that time. If you really don't like the krausen, use an ale pail for the primary, and skim it off with a sanitized spoon. Personally, I don't think it is worth the trouble.

-a.

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Old 12-18-2008, 03:34 AM   #9
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Put more wort in it.

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Old 12-18-2008, 03:36 AM   #10
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I have only had my Heffes blow off... nothing else.

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