Brewhouse Efficiency Explained
Tuesday, October 28th, 2008 | Beer News
During our latest beer tasting event the topic of brewhouse efficiency was brought up. Here is a link to an explanation posted at beersmith.com - this explains it much more clearly than I could.
http://www.beersmith.com/blog/2008/10/26/brewhouse-efficiency-for-all-grain-beer-brewing/
The bottom line is what percent of the sugars are you extracting from your grains into your wort.