Originally Posted by schoch79
Gotcha, sounds pretty common sense when I stop to think about it. About mixing in oxygen though...can anyone offer an explanation as to why o2 is ok early but not later? Wouldn't oxidation be oxidation regardless of when it happened? I don't mean to argue but I'm just trying to get some science behind all of this and understand it better
It is observed that in presence of oxygen yeasts tend to focus on cell development. As a result it is important to have oxygen at the early stage to promote cell multiplication so that the yeast colony reaches an optimum size. But in absence of oxygen the energy output of fermentation being not adequate enough the cell development slows down.
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