Barnstormer
Well-Known Member
I just finished a batch of some pale ale and am a little confused about my efficiency. After collecting my sparge runnings, I had about 8 gallons. A bit much I know but I ended up adding some boiling water because I undershot my mash temp and my sparge temp. The theoretical yield for 8 gallons was 1.047 and I measured 1.042. Unless I'm confused, that means I got 89%! I was stoked. Then I took a gravity reading post boil (5.5 gal) and it was 1.051. The theoretical yield post boil was 1.068, so that gives me 75% efficiency right? So which efficiency calculation is right? Is one maybe "mash efficiency" and the other "brew-house efficiency" or what. And why would the efficiency change through the boil? I would appreciate if someone could please help clear this up for me. Thanks
Either way, I'm sure it will still be some tasty beer!
Either way, I'm sure it will still be some tasty beer!