I've been oxygenating for a while but new questions have come up because (1) I've switched to ten gallon batches and (2) I recently learned that air stones are not all the same.
First: does the quantity of the batch affect how long one must oxygenate the wort: e.g., if I give 5 gallons one minute with the stone does that mean that to get the same amount of oxygen in a ten gallon batch I must give it two minutes with the stone?
Second: wyeast website says that one minute of oxygen with a stone provides 12ppm. But it does not say what kind of stone. I believe I have a 2 micron (got it from williamsbrew) and my understanding is that between a 2 micron and .5 micron, the 2 micron will require longer times because the bubbles produced are larger. (Incidentally, wyeast doesn't say what size batch one minute will provide 12 ppm to.)
My default procedure (for five gallons) has been to give an average-strength ale a minute with my (2 micron?) stone. But it seems that many may do longer times.
Any advice (especially how long you oxygenate for a given ale or lager) is much appreciated. Thanks.
First: does the quantity of the batch affect how long one must oxygenate the wort: e.g., if I give 5 gallons one minute with the stone does that mean that to get the same amount of oxygen in a ten gallon batch I must give it two minutes with the stone?
Second: wyeast website says that one minute of oxygen with a stone provides 12ppm. But it does not say what kind of stone. I believe I have a 2 micron (got it from williamsbrew) and my understanding is that between a 2 micron and .5 micron, the 2 micron will require longer times because the bubbles produced are larger. (Incidentally, wyeast doesn't say what size batch one minute will provide 12 ppm to.)
My default procedure (for five gallons) has been to give an average-strength ale a minute with my (2 micron?) stone. But it seems that many may do longer times.
Any advice (especially how long you oxygenate for a given ale or lager) is much appreciated. Thanks.