please forgive me, Im fairly new to home brewing, and Ive got my second extract brewing now....but I have a question about the OG/FG and ABV with this recipe...
per your original post...
Calculated values
OG 1.064
FG 1.020
IBU 40.6
SRM 40L
ABV 6.1
per my calculations
1.064- 1.020 = .044...