The explanation that makes the most sense to me is that yeast builds up nutrients before it goes dormant. If you warm the yeast up before using it, it begins using up those nutrients before it gets into the wort. By pitching cold, all the nutrients are available in the wort.EDIT: damn, just saw that I said that same thing a month ago!Interesting. Haven't heard this. What is the benefit? Why does it work better?
Edited by denny, 26 October 2009 - 10:16 AM.