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Old 12-11-2010, 12:55 PM   #101
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Originally Posted by Walker View Post
I don't know if they fit on BB's. Anyone know if they do?
Damn looks like they don't. Doesn't make sense why BB doesn't make their own to fit.
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Old 12-11-2010, 01:01 PM   #102
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Damn looks like they don't. Doesn't make sense why BB doesn't make their own to fit.
Don't know why you say that. I don't use the caps for fermentation, I use one to hold my autosiphon. Fits perfectly on all 5 of my 6g Better Bottles:

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Old 12-11-2010, 01:10 PM   #103
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Don't know why you say that. I don't use the caps for fermentation, I use one to hold my autosiphon. Fits perfectly on all 5 of my 6g Better Bottles:

I say that because all the sites that sell them say "DOESN'T fit better bottles." If they do fit, then that is awesome.
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Old 12-11-2010, 01:17 PM   #104
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Originally Posted by trevorc13 View Post
I probably should have read all of the threads, but I don't have much time, so sorry if this has been asked already. I read in "Brew Wares" that you can invert your carboy with a carboy cap and use it as a kind of conical fermenter. Drain the yeast through the center tube after fermentation and prevent the need for a secondary carboy. Have you heard of this (or already talked about it)?
Here's the commercial version that's been around quite awhile:

http://www.brewsource.com/ProdNav/Eq_439.asp

The problem with using a carboy as a pseudo conical is that the shoulder angle is not steep enough. IIRC, for optimum performance, the angle should be a steep 60 deg or so. The slope angle of a carboy is relatively flat at maybe 15 deg or so. Most of the yeast tends to pile up on the carboy shoulders rather than funneling into the neck where it could be harvested.

FWIW, I also use a carboy cap and racking cane to move the beer, but instead of siphoning, I push the beer out with CO2. I also purge the receiving vessel with CO2 beforehand. I figure this method minimizes air exposure. I shopped for an SS racking cane, but balked at the prices. Instead, I made my own out of 3/8" OD soft copper tubing. I've found that the carboy cap holds the cane firmly enough that you easily position the tip above the trub/yeast on the bottom.
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Old 12-11-2010, 01:36 PM   #105
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I say that because all the sites that sell them say "DOESN'T fit better bottles." If they do fit, then that is awesome.
I just tested a new carboy cap onto my BB. Works fine. It's not super-tight (you can turn the cap when it's on the bottle), but I believe it's making a seal all the way around. I use the carboy bungs that go into the carboy; so, I don't have any experience using the carboy caps for fermenting.
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Old 12-13-2010, 12:17 PM   #106
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Well done, Walker-san

I'd thought I'd post a photo of how I push beer from primary to keg using a carboy cap. This is a black ale being pushed from freezer/fermentation chamber to corny keg using CO2 @ ~7 psi



The output goes into a CO2 purged, sanitized keg. The output hose is connected to the "out" post on the keg.
How well does that CO2 line stay on the carboy cap? Seems like it would be a bitch to cram the rubber from the cap into the ID of that CO2 line. If it's not, I'm definitely going to try this next.
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Old 12-13-2010, 12:48 PM   #107
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Even @ about 8 psi, the line hasn't blown off.

Plan B was to add more rigidity to the air input. I'd put a couple inch piece of racking cane into the cap and attach the line to that.

I'm quite happy with it so far.

Let us know how yours works

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Old 12-13-2010, 01:10 PM   #108
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The problem with using a carboy as a pseudo conical is that the shoulder angle is not steep enough. IIRC, for optimum performance, the angle should be a steep 60 deg or so. The slope angle of a carboy is relatively flat at maybe 15 deg or so. Most of the yeast tends to pile up on the carboy shoulders rather than funneling into the neck where it could be harvested.
That makes sense. Thanks for clearing that up before I tried it!
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Old 12-13-2010, 02:36 PM   #109
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I put together this adapter for the gas line to carboy cap connection.

The 1/4" male flare fitting connects to the gas line and the 1/4" barb fits securely into the smaller nipple on the carboy cap. Obviously, this would only be of use if your gas line has the matching 1/4" female flare fitting.

A note on safety. I don't know how much internal pressure a carboy can handle, but I always take care to use minimum of pressure to push the beer. I think we are all aware of how hazardous a shattered carboy can be. Take it slow and easy and be phukking careful.

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Old 01-26-2012, 01:53 AM   #110
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So when you are siphoning from a bucket to carboy, you take your cap off of your racking tip and place it on the end of your hose to filter out the trub from the bucket?

This is cool!

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