Greetings, beer nerds! Long time lurker here with an OG mystery. See if you can help me figure this one out.
Pre-boil OG 1.051 @ 95 F = 1.056 SG standard
Pre-boil volume 6.8 gal @ 140 F = 6.7 gal standard
Post-boil volume 5.9 gal @ 190 F = 5.7 gal standard
I calculate this as 1 gal...