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Home Brew Forums > Home Brewing Beer > General Techniques > Closed-system pressurized fermentation technique!
View Poll Results: What do you guys think about pressure fermentations? Time for a poll.
I've done it and I liked it just fine! 83 11.16%
I've done it, nothing wrong with it, but prefer normal fermentation techniques. 21 2.82%
I've done it, hate it, and never will do it again! 4 0.54%
I've never done it, but it is on my list! 556 74.73%
I've never done anything. I only brew beer in my mind. 80 10.75%
Voters: 744. You may not vote on this poll

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Old 10-10-2012, 06:27 PM   #1591
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Have you done any lagers at those temps or just ales?

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Old 10-10-2012, 06:33 PM   #1592
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"WortMonger;4486813]Have you done any lagers at those temps or just ales?"

Should have been more specific on that, just ales. That's why I mentioned depending on the yeast. I am set up to do lagers but have not yet done it.

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Old 10-11-2012, 02:06 PM   #1593
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Ok, yesterday before I headed out to work I was at 65* and 12 psi. That's about what it looked like the night before. I got home and it had gone to 22 psi and up to 66*. I'm still there this morning and no smell of CO2. I think she's done. Going to sample tonight after work for diacetyl and final gravity, and if it looks good I'm crashing. I'm loving this yeast. Anyone know how we'll 007 washes? I'm going to scrub this cake, measure it out, and pitch what I need for my next batch. I'm thinking a English Pale Ale but with American hops, Columbus. As soon as my supplies are cleared out I will buy for appropriate styles and probably more big lagers like Helles and Bocks. Yum!

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Old 10-21-2012, 02:28 PM   #1594
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Default Valve Leak

So my relief valve (mcmaster 99045K46) continues to leak intermittently despite multiple cleaning attempts.

Is there a consensus on the best valve or a list of recommended valves?


Cheers!

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Old 10-21-2012, 03:09 PM   #1595
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I have that same valve and it doesnt leak. I had a cheaper brass one when I first started using this technique and it sucked.

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Old 10-22-2012, 03:03 PM   #1596
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Quote:
Originally Posted by pickles View Post
I have that same valve and it doesnt leak. I had a cheaper brass one when I first started using this technique and it sucked.
Maybe my best bet is to purchase a new one. No one else seems to have had issues
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Old 10-29-2012, 05:05 PM   #1597
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Well, my second batch off the same yeast went well. I made a blonde ale out of leftover ingredients and pitched the washed cake from the northern English brown. This time I had to wait until the next morning to pitch to drop the couple of more degrees in my fermentation freezer. The spunding cropper seemed to work perfectly from keeping anything out of the valve, actually this time there was nothing in it. I left the valve wide open until day 3 of primary and then closed it to build to around 10 psi. I checked gravity the next day and was below 1.020 on this 1.054 beer so I went for carbonation. The software says I should get to 1.013, but I don't think it really accurately counts the fact I mashed at 156*F for a chewy beer. So, I'm thinking my last gravity reading of 1.017 is pretty close to terminal gravity. Tasted the sample for diacetyl and there was none last night so I cold crashed. I will transfer his bad boy to a serving keg tomorrow after work. The last sample I pulled was crystal clear so I have no worries about clarity on this one. I gotta say again that wlp007 is a beast! I'm going to have to swap to lagers now though or find a way to heat my fermentor. Should have bought the dual stage ranco in hindsight.

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Old 10-30-2012, 07:41 PM   #1598
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Quote:
Originally Posted by lagavulin View Post
So my relief valve (mcmaster 99045K46) continues to leak intermittently despite multiple cleaning attempts.
Did you do a bubble test? I was surprised when I first set mine up. I dunked it in the red bucket of water.

Here is what I did; http://www.flickr.com/photos/madscie...us/6162911059/
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Brewing with MS; http://www.flickr.com/photos/madscie...473769/detail/

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Old 10-30-2012, 10:59 PM   #1599
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I'm in my third (and fourth) batch using this method and liking it!

Two questions: how do you guys draw samples? If I pull from the liquid out in a sanke or corny all I get is yeast and trub. I assume that I wouldn't want to draw this all out right away?

Secondly, dry hopping. I like to dry hop for the last week in the primary, but at this point everything is quite pressurized. Not a problem to top off with CO2 after dumping the hops in, but is depressurizing/rupturing yeast a concern?

Thanks!

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Old 10-31-2012, 12:52 PM   #1600
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Default Top Cropping

I brewed a Rye Barleywine 2 weeks ago and despite all my efforts, it hasn't attenuated to where I wanted (1.113 down to 1.034). This past weekend, I brewed a Wee-Heavy that is fermenting vigorously right now so I rigged a top cropping set-up. Hopefully the active Wee-Heavy yeast does some additional work on the Barleywine.

The Wee-Heavy fermenter is on the right, feeding the Barleywine it's krausen to the left. I'm not fermenting these under pressure but I wanted to show that it is possible to top crop under pressure. Both fermenters could be spunded in series from the one regulator on the left fermenter.
(click to zoom)

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