Oxygenate before Pitching ...

[Bassman]

or Pitch before Oxygenating or it doesn't matter?

Yesterday I brewed and pitched, stirred the yeast in and then did a 15 sec. blast of oxygen, waited a minute and then did another 15 sec. blast. My guess is that is fine but I figure it is good to ask.

 

[Bubba_Mustafa]

Have heard it doesn't matter, before or after, as long as the after is right after; not 6 hours later.

 

[permo]

Personally I like to do both. When I am siphoning from kettle to fermenter I like to do so through a fine mesh strainer, this really oxyginates and catches crud, then after pitching I really aerate the crap out of the it.....I think that helps distribute the yeast and expose them all to nutrient, oxygen and wort right away.