• Please visit and share your knowledge at our sister communities:
  • If you have not, please join our official Homebrewing Facebook Group!

    Homebrewing Facebook Group

beer absorb co2?

Homebrew Talk

Help Support Homebrew Talk:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

dansmith13

Active Member
Joined
Feb 5, 2006
Messages
38
Reaction score
0
Location
Upstate NY
I put my corny in the fridge last night at about 10psi and tonight it's down to about 5 psi. I had originally forced about 30 psi then left it and did that i think one more time.

Why would the psi drop? Does the beer absorb it and then drop the psi level?
 
Yes. The beer absorbs the CO2. What you really need is to leave the pressure on it by leaving the tank attached and set the pressure to 12 PSI or so.
 
You can see how fast water absorbs co2 by hooking up your regulator to a corny half full w/ water setting it a 10 or so pounds, letting it stabilise so the regulator is not making any noise and then shake the corny. You will hear the regulator activate because the h2o is sucking up the co2 at a pretty amazing rate!
 
dansmith13 said:
I put my corny in the fridge last night at about 10psi and tonight it's down to about 5 psi. I had originally forced about 30 psi then left it and did that i think one more time.

Why would the psi drop? Does the beer absorb it and then drop the psi level?

Cold beer absorbs faster/more CO2 than warm(er) beers.
 
Well I just brought it up to about 12 psi. Thanks for the help. I was just concerned originally because I figured that if I set it at, say 10 psi and the beer absorbed co2 that the tank would let more out to get it back to 10 psi.
 
That's exactly what the tank will do. The regulator regulates the pressure. So as the beer absorbs gas, the regulator releases more gas from the tank. That's exactly what you want it to do. Eventually enough gas will saturate in solution, the system will equalize, and no more gas will be pushed in until you pull a beer.

Once gas stops entering and dissolving, you have fizzy beer, which is a wonderful wonderful thing. Cheers :D
 
Back
Top