92% conversion efficiency, 91% mash efficiency!Do you mind sharing you water to grain ratio for your mash? My mash efficiency was 72% (14 lbs of two row with 1.050 as a pre-boil OG collecting 7.5 gal wort collected) on my last batch and I am trying to decide what to change first, my mill gap (crush looks ok, but I am an all grain noob) or use a thinner mash (been using 1.250 quarts/lb)... I got the calculation from how to brew ( 37 x grain / volume = points; preboil og/ points = mash eff.) Am I doing this calculation right? I am batch sparging in a 70 quart cooler with a toliet braid.
If ya want to go down that "efficiency" road play with this. http://braukaiser.com/wiki/index.php?title=Troubleshooting_Brewhouse_Efficiency.
There is a Efficiency troubleshooting spreadsheet under calculating efficiency that will guide ya in the direction. Personally i use 1.75qt/lb because thats what works best for my system, EHERMS .
Heres another link that may help. http://braukaiser.com/wiki/index.php?title=Understanding_Efficiency
Great website for sure.