« on: March 29, 2014, 09:55:20 AM »
What about aeration? I typically whip up the wort with a degasser tool on my cordless drill just before pitching - would you recommend aerating the wort after racking into primary ahead of a delayed yeast pitch, or just aerate right before the pitch? (say, it was the following day)
I wouldn't aerate/oxygenate until immediately beforehand. If you do, it would expose your beer to a greater chance of infection from any persistent bugs that made it into the fermenter. One of the main reasons that most of the time everything works out is the massive amount of yeast pitched relative to all the other organisms takes over and doesn't allow the others to multiply significantly. If you have used good sanitary technique, you can pitch the next day without any problems. But don't aerate until right beforehand.