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Yeast and Fermentation / Re: Expected lifespan of O2 canister
« on: March 11, 2013, 06:12:59 AM »
I get about 20 batches out of mine, I'm on my 3rd bottle. They seem to last forever. Only open the regulator enough so the bubbles just make it to the top of the wort, 2 minutes worth. 30 seconds for a big (4L) starter. I remove the regulator when not in use.



