it will become overcarbonated over time, even if you turn the pressure down once the correct concentration is reached.
Don't worry about it, that wasn't correct to begin with.
If you determined the beer had reached a proper carbonation level and turned down the regulator from the "burst carb" pressure (in this case, 25 psi) to the appropriate pressure vs beer temperature to maintain that carbonation level (refer to this chart), it would not over-carbonate...
Cheers!
It would. Once the carbonation was correct at the bottom, all the beer throughout the rest of the keg would have more than the correct amount. After some time, the beer would approach having a CO2 level in between that of the top and bottom. This average would be higher than the bottom, and thus too carbonated. Simple application of Fick's Law of Diffusion.
It would. Once the carbonation was correct at the bottom, all the beer throughout the rest of the keg would have more than the correct amount. After some time, the beer would approach having a CO2 level in between that of the top and bottom. This average would be higher than the bottom, and thus too carbonated. Simple application of Fick's Law of Diffusion.
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