So, getting back to efficiency. I have been brewing allgrain my last four batches. I had BIAB dialled in real good, hitting temperatures, gravities, volumes etc. Efficiencies were high 60's, but always within a percent or two. My first batch using the coleman cooler mash tun, efficiency shot up to 74, second 78, third 74, and last night efficiency worked out to 66
, not that I am uber concerned about efficiency, but with everything based on 75% efficiency, I had to make some adjustments to get the beer where it was supposed to be. PBG was 9 points low. It is what it is I added what DME I had on hand, less than a pound, thanks to Chico for the real time advice. Then I extended the boli to get to target gravity.
Recipe
Coffee's for Closers
5.5 gallon fermenter
PBG 1053
OG 1063
FG 1016
With close to a 90 minute mash at 155F, and 5.11 pH, conversion, and a 10 minute batch sparge adding the 170F sparge water (pre-measured from total water volume), and giving it a 10 minute rest before collecting the second runnings. Conversion in brew session registered 66%, with PBG coming in at 1044.
I feel like my process is good....but I have just switched from BIAB to allgrain, and trying to dial it in, but the conversion seemed to be my issue with this batch for some reason.
Is the low pH to blame?
Should I mash longer?
Hep me brothas and sistas!