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Old 12-21-2011, 04:14 AM   #1
Ozzfest05
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Default Pressure controlled fermenters

Wondering if there are any good fermenters , even smaller 2-3 gals for pressurized fermentation.

Currently I have a stainless keg waiting for me from a friend, the plan being to drill a quarter inch hole on top and braze in a pressure gauge with 1/4 copper pipe for monitoring pressure.

Drill another top hole for low pressure relief valve, thinking to set at 15 psi ? What this will do is once pressure builds up in the fermenter if it hits the set limit then it will vent gas until under set limit.

Lastly I will install a ball valve drain about 2" above bottom, rubber gaskets for additional seal and debating on stainless braid removable filter for sediment , trub, hops debree.

Gauges and relief valve plus the ball valve drain and the money for the keg ( think keg was 20) gets a bit pricey.

Is there a premade perhaps plastic solution? I know the keg pressure fermentation would be bad ass, but maybe I can save a few bucks.

Thanks .


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Old 12-21-2011, 05:26 AM   #2
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With corny kegs being as cheap as they are, it's hard to imagine even a plastic solution that costs less. You've seen the pressurized fermentation thread, yeah?


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Old 12-21-2011, 07:40 AM   #3
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Quote:
Originally Posted by MalFet
With corny kegs being as cheap as they are, it's hard to imagine even a plastic solution that costs less. You've seen the pressurized fermentation thread, yeah?
You mind posting that thread?

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Old 12-21-2011, 07:49 AM   #4
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Old 12-21-2011, 03:15 PM   #5
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Quote:
Originally Posted by MalFet View Post
With corny kegs being as cheap as they are, it's hard to imagine even a plastic solution that costs less. You've seen the pressurized fermentation thread, yeah?
No didnt check it out yet, im experienced in HVAC however , I would rather build my own as I described above as it would be awesome and easy to use with the drain valve and readout installed, however, I dont have uber amount of space which this keg will take up. Fortunetely this will take away my need for secondary, straight for pressure fermenter to bottle.
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Old 12-21-2011, 07:05 PM   #6
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Before you go modding a keg I would read through that thread. It makes no sence to hack into a keg when the perfered way is not to do that. Worst case you hate CPF and still have a useable keg, but if you mod it that may not be true.

I do the CPF inside sanke kegs and love the way it works. FWIW you will want a scale because you will not be able to see when the keg is full unless you do not intend to fill the keg (putting 5 gallons of beer in a 7.25 gallon keg)
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Old 12-21-2011, 08:10 PM   #7
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Spunding Valve - easy to make, easy to use for all kinds of things, no keg modification.

People have done similar things with sanke kegs as well.

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Old 12-21-2011, 11:40 PM   #8
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Old 12-22-2011, 12:22 AM   #9
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The keg I got is actually a 53L stainless , it's not one I would reuse for anything but a fermenter or brew pot.

I wouldn't be hacking apart this keg. Two perfectly drilled and air tight 1/4" holes. Brazing would be done and with purged nitrogen and I would clean the brazed joints just like new. The drain valve is just for convenience, that hole would be 3/4-1".

Removable filter on drain valve would be in case I dry hop, but there's nothing to not like about pressurized fermentation.

Less esters and better tasting beers.


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