Originally Posted by Hello
Okay so I get that but after fermentation too?
What would be the difference? Before, or after? Wort is wort, the same gravity before the fermentation and will ferment the same. Water is water. I don't see how it can possibly make a difference. Oxygen is an issue, and you don't want to splash or add oxygen. But if using deoxygenated water- how is that different if I had it today than a week ago? I guess I just don't see the difference. Adding it is adding it.
InBev does it all the time, as do other mega breweries.