All-Grain Beer Mash Efficiency & Brewhouse Yield Calculator
Calculate all-grain mash extraction efficiency %, conversion efficiency, pre-boil specific gravity, and total brewhouse yield from grain bill weight, grain potential (PPG), and kettle volumes per ASBC brewing standards.
Grain Bill & Kettle Measurements
Lbs
Gal
Wort volume collected before starting boil.
SG
Hydrometer or refractometer reading (temp corrected).
Gal
SG
Mash Extraction Efficiency
71.9% (GOOD / STANDARD)
71.9 %
Extracted 292.5 of 407.0 theoretical points (26.6 PPG actual)
Brewhouse Efficiency
71.6 %
Into fermenter (291.5 points)
Boil-Off Concentration
+8.0 Gravity Points
1.0 Gal boiled off (15.4% boil-off rate)
Brew Day Performance Diagnostics
Theoretical Maximum Potential:
407.0 Gravity Points
Pre-Boil Gravity in Plato:
11.2 °Plato (1.045 SG)
Kettle / Trub Transfer Loss:
0.3% loss (1.0 points left in kettle)