javert
Well-Known Member
- Joined
- Dec 4, 2016
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Been getting flat beer on kegs despite apparently having enough pressure and low enough temperature, so I'm researching how to measure carbonation.
Turns out the Zahm is quite expensive and the Gehaltemeters are even higher priced. Looking at the Taprite tester, turns out that it is merely a vessel that is filled and pressurized from the keg and which measures pressure and temperature to calculate the carbonation level.
If measuring pressure and temperature on a closed vessel is all what is needed, what prevents us from just attaching a manometer to the keg through the ball / pin lock and calculate the carbonation provided the temperature of the keg is the one from the freezer? I guess headspace is the key difference here since the testers are filled up completely to displace air. Is the headspace relevant in here to nullify the manometer results?
Turns out the Zahm is quite expensive and the Gehaltemeters are even higher priced. Looking at the Taprite tester, turns out that it is merely a vessel that is filled and pressurized from the keg and which measures pressure and temperature to calculate the carbonation level.
If measuring pressure and temperature on a closed vessel is all what is needed, what prevents us from just attaching a manometer to the keg through the ball / pin lock and calculate the carbonation provided the temperature of the keg is the one from the freezer? I guess headspace is the key difference here since the testers are filled up completely to displace air. Is the headspace relevant in here to nullify the manometer results?