Equation for CO2 Solubility in Beer

ocwo92 · 07-02-2011, 10:50 AM

I'm looking for an equation for the solubility of CO2 in beer. To me, the curve looks like some y = ax + be^(cx) + d, but I'm not sure.

I've seen a few tables indicating the solubility of CO2 in beer at different temperatures; for example, in John Palmer's "How to Brew," which may be found online here. The table is found in Chapter 11. A similar table may be found here. (They're probably drawing on the same source, because the list of beer types are the same in Mark Hibberd's artikel and John Palmer's book.) However, I'm looking for an equation so that I can enter it in a spreadsheet together with other brew-related equations.

Does anyone know the equation?

**ajdelange** · 07-02-2011, 07:36 PM

Yes. They are in the article at http://ajdel.wetnewf.org:81/Brewing_articles/CO2%20Volumes.pdf

ocwo92 · 07-02-2011, 08:20 PM

Quote:

Originally Posted by ajdelange

Yes. They are in the article at http://ajdel.wetnewf.org:81/Brewing_articles/CO2%20Volumes.pdf

Great, thanks! I was actually in the process of deducing the equation myself, using a variable Henry coefficient, too. But using others' work is much easier.