TriggerFingers
Well-Known Member
So I am aging an Imperial Stout on oak in a corny keg. I purged it very well (about 2 minutes open with the relief valve open) with CO2 a month ago. A friend of mine seems to think that the CO2 needs to be added each month or so to keep the blanket intact? His experience is that when he pulls the relief valve, there is no longer a hiss coming from the keg.
However, that doesn't make sense to me. If the keg is blanketed, then wouldn't the CO2 eventually absorb in the solution? Just because there is no longer a hiss doesn't mean that the CO2 escaped and O2 got in.
My questions are:
Am I correct that the CO2 blanket is still there?
Do I need to add more CO2 to the keg periodically if storing for 6-9 months.
Thanks!
However, that doesn't make sense to me. If the keg is blanketed, then wouldn't the CO2 eventually absorb in the solution? Just because there is no longer a hiss doesn't mean that the CO2 escaped and O2 got in.
My questions are:
Am I correct that the CO2 blanket is still there?
Do I need to add more CO2 to the keg periodically if storing for 6-9 months.
Thanks!