bessieflames
Well-Known Member
Hey all--longtime lurker, first time poster here. I had a question about making a starter on a stir plate. I added pure O2 through a stone and turned the stir plate on. My question is this: is it beneficial to inject pure O2 a second (or third) time? I am assuming that you want oxygen constantly present in the wort so that the yeasties multiply instead of fermenting and that is the purpose of the stir plate. It seems to me that since CO2 is coming out of solution and it is heavier than air, a stir plate won't be able to bring more O2 into solution other than what it starts with. Thanks in advance for the response.