How much CO2 is produced during fermentation?

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Gnomebrewer

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I came up with 22.3 moles of CO2 for a 20 L batch, with slightly different assumptions than yours. Both ways get a decent ballpark number.
So that's about 25 moles of CO2 for a 22L batch. +/- 20% of each other is close. A fair chunk of that would be taken up by me assuming a 1.010FG, when in reality it was probably more like 1.015. That's 10% of my calculation straight up.
 

hottpeper13

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Too bad we can't go to the hardware store and purchase a MOLE trap to store the extra CO2 in! ;)
 

McMullan

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Too bad we can't go to the hardware store and purchase a MOLE trap to store the extra CO2 in! ;)
Get at least a couple to store all the carbon based biomass produced during a good fermentation.
 
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Wables

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If you strung together 2 or 3 kegs on a 30 psi fermentation, you would have plenty of CO2 to run your keggerator, and the beer would already be carbonated.
 

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