I've been wondering, for those of us who batch sparge, what is the average mash efficiency most people are getting? I know the answer that most seasoned brewers will give is "the number doesn't matter as long as you're consistent with your equipment", but i'm still curious.
I use a circular 10 gallon cooler for my mash tun with a false bottom. I mill my own grains with the barley crusher mill with the setting it came with (mill on day of brewing). I use strike and sparge water amounts so as to get approx 50/50 1st and 2nd runnings. I heat my sparge water to 190 and it is about 165-167 after transferring it to the grain. I stir for about 5 min and let a rip. (Pretty much Denny's technique I think).
I just did my 10th all grain brew yesterday and for the last several have been getting right around 72% mash efficiency. Funny that my first 5+ AG brews, I was getting 75-78%, but now that I have my system streamlined and hitting strike temps better etc, it has dropped?
Anyway, what are your numbers and setup?