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-   -   Carbonating at 20 PSI (http://www.homebrewtalk.com/f35/carbonating-20-psi-243917/)

Dr1nkBeer 05-05-2011 09:54 PM

Carbonating at 20 PSI
 
I looked around and all i could find on this is the two methods.

1. set it to servinge psi and leave for a week.
2. set it to 30 psi and shake it a bit.

Is there another method that we can use for a three day turn around?

2nd question... has anyone tried to load the keg to 20 psi and disconnect the Gas supply and leave the keg alone? would that work?

Yooper 05-05-2011 10:00 PM

Don't shake! You'll end up with overcarbed foamy beer.

If you're in a big big hurry, you can set the psi at 30 psi in the fridge for 48 hours, then purge and reset to 12 psi. Don't go longer than 48 hours! You can check it after 36 hours, but sometimes it takes the full 48 hours. This works very well in a 39 degree fridge.

If you give it 20 psi, and then take it off of the gas, the gas will be absorbed into the beer but it's not enough to carb up. You must leave the gas on to force carb.

Dr1nkBeer 05-06-2011 01:03 AM

Quote:

Originally Posted by Yooper (Post 2898398)
...you can set the psi at 30 psi in the fridge for 48 hours, then purge and reset to 12 psi.

Okay thats great info.. my fridge is at 40 and i'm kicking down to 39 tonight. What are you saying to bring it down to 12 psi? is that the serving psi?.. i plan on serving at 2-5 psi max.

milldoggy 05-06-2011 01:55 AM

I carb at 20 and let it sit for 5-7 day. Works great. You have to leave the co2 hooked up.

Yooper 05-06-2011 01:56 AM

Quote:

Originally Posted by Dr1nkBeer (Post 2898855)
Okay thats great info.. my fridge is at 40 and i'm kicking down to 39 tonight. What are you saying to bring it down to 12 psi? is that the serving psi?.. i plan on serving at 2-5 psi max.

Why? If you balance your system, you keep it the same all the time. Otherwise, you'd have to go up and down every time you served out of it. The beer will go flat at 2-5 psi.

Dr1nkBeer 05-06-2011 11:58 AM

okay that makes sense... trying to make sure i'm doing it right... so I set the PSI to 20 and a few hours later its down to 10... then i set the fridge to 39 and the PSI to 30 and this morning its down to 20 psi...

Does this mean its carbonating?

heferly 05-06-2011 12:06 PM

Quote:

Originally Posted by Dr1nkBeer
okay that makes sense... trying to make sure i'm doing it right... so I set the PSI to 20 and a few hours later its down to 10... then i set the fridge to 39 and the PSI to 30 and this morning its down to 20 psi...

Does this mean its carbonating?

Are you turning the gas off at the tank each time? If yes, then yes, it's absorbing co2...but you should leave the gas on the whole time to force carb. At this point, turn it to 30 and leave on for another 12-24 hrs, purge, then turn down to 10-12, as yooper said.

Turning down to 3 for serving will definitely de-gas your beer over time, so i would suggest you get longer beverage lines (3/16") to be able to pour at the correct psi. Bev lines are cheap, less than 10 bucks for 10 feet. :mug:

Dr1nkBeer 05-06-2011 04:57 PM

Okay.. so i'm thinking I may have a bad Regulator... I have a four keg manifold and right now i have only one hooked up to keg. The knob on the bottle is turned all the way out.. and the high pressue is reading just above the "red" zone i think its like 500 or so psi. thats normal.

When i turn "in" my low pressure regulator the needle moves to 30 psi just fine but shouldnt it move back down on it own when i turn "out" the regulator? I'm finding that i need to release the CO2 from an unused port on my manifold in order to get it to turn down. I thought the regulator should do that automaitically?

I'm not shutting down the tank at all... its wide open and the low pressure regulator is sitting at 30 psi... thats where i stoped turning "in" the valve. I got about 6 feet of beer line running from my keg to the shank but i didnt hook that up yet. Gonna wait for high pressure to be purged out first.

cincybrewer 05-06-2011 05:09 PM

I'm not sure what you mean by the in and out valve as I don't use a manifold, but if you set your PSI to 30 and then try to turn it down to, say, 12, it won't go down unless you purge the keg of co2. If you don't purge it will take an extremely long time for the co2 to come out of suspension. So when you want to bring the PSI back down to the serving pressure, you can turn off the gas, purge the keg, and then set the PSI to 12 (or whatever PSI you want it at). But you may have to keep repeating the purging process until it comes all the way down....Hope that makes sense.

Dr1nkBeer 05-06-2011 05:19 PM

okay so that is normal behavior.. good.

The IN and OUT i mean the Low pressure regulator KNOB.. it goes in to raise the psi and out to lower it.


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