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Old 07-30-2006, 06:13 PM   #1
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Default Unbelievable blow off!!

This blow off experience may not be unbelievable to most of you who have been brewing for a long time, but for me, it is absolutely incredible!

Yesterday I brewed my first RIS from a B3 kit (1.090 OG). At about 6:00pm I transferred my cooled wort (60˚F) onto a previous yeast cake from a 1.060 OG creme stout, which had a 2000ml starter made from Wyeast 1098, I think, that I racked to a secondary earlier in the day. I used a stone and pure O2 for about 2 minutes, and then again 2 hours later for about 2 minutes. By 10:00pm I already had a furious blow off in progress. Foam control drops were used. I can't even imagine what it would be like had I not used the foam control drops!

I got up this morning to find that my 1 gallon jug filled 1/3 of the way with water that I was using for my blow off container was now filled up about 2/3 of the way! It is apparent that there is now a strong fermentation going on in my blow off bottle! I can see yeast actively swirling around and a very thick krausen has formed! I will add that the ambient temp in my cellar is 64˚F and with the help of my swap cooler the fermenter is sitting at a comfortable 68˚F. I am just slightly saddened by the loss in volume that I am experiencing from this violent blow off, but I am at the same time, optimistic that I will have good attenuation.

I'm not really asking a specific question, but would appreciate any thoughts or comments with regard to your experiences with such violent blow offs. Thanks.

John

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Old 07-30-2006, 06:24 PM   #2
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what, no pictures?

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Old 07-30-2006, 06:25 PM   #3
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I've had a good ferment going in my blow-off holding container...despite it being 1/2gal. of water with 1tbsp of bleach! It was a good bleachy-smelling beer in there.

Ended up losing nearly 1/4 gallon of volume in my Oktoberfest Ale at a temp of 62deg. The yeast was German Ale...1007 I think...and it makes a nice krausen.

Yet, my Winter Ale brewed on the same day with London ESB yeast and a similarly close OG didn't blow at all and had a lower gravity when racked to secondary.

Wondering what my Wee Heavy will do tommorow with a similar OG as yours and a nice healthy yeast starter...

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Old 07-30-2006, 08:18 PM   #4
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I have had a few outrageous blow-offs as well. the trick to not losing precious beer is using a 6 gal carboy for primary and a 5 for secondary. The gas from ferming clears the oxygen out of the 6 so no worry's about oxy to beer, and the xtra head space keeps the beer from going out the blo- off tube. Cheers

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Old 07-30-2006, 08:21 PM   #5
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Quote:
Originally Posted by gabe
I have had a few outrageous blow-offs as well. the trick to not losing precious beer is using a 6 gal carboy for primary and a 5 for secondary. The gas from ferming clears the oxygen out of the 6 so no worry's about oxy to beer, and the xtra head space keeps the beer from going out the blo- off tube. Cheers
That is a 6 gallon Better-Bottle shown in the photo.
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Old 07-30-2006, 08:25 PM   #6
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Hey mods, what happened to my post with the linked photos? Were they too large?

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Old 07-30-2006, 08:25 PM   #7
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What was the total volume droped on the yeast cake?

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Old 07-30-2006, 09:35 PM   #8
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The total volume was 5.5 gallons. Here is another attempt at posting the photos.

John



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