TALKING YEAST WITH WYEAST LABORATORIES (2012) by NorthernBrewerTV:
Yeast junkies – you’ve hit the jackpot! Owen Lingley from Wyeast Laboratories visited our Northern Brewer Minneapolis store in early 2012. Here he discusses the following (in loose order): Wyeast’s history, new yeast strains for 2012, Activator “smack” packs, yeast starter recommendations, pitch rates, temperature and flavor/ester influence, harvesting and reusing yeast, approximating yeast count by percent solid by volume, aeration, attenuation, force-ferment test, VDK testing, yeast strain selection, flocculation, and collaborations with Northern Brewer Homebrew Supply.
Link to pitch rates and harvesting:
http://www.wyeastlab.com/hb_pitchrates.cfm
Yeast strain info:
http://www.wyeastlab.com/hb_yeaststrain.cfm