Yield of a fermentable in points per pound per US gallon, as-is.
Uses ppg when the addition has one (a user override, or a catalog that publishes PPG directly). Otherwise it converts the maltster's fine-grind dry-basis extract figure:
ppg
PPG = ((FGDB% − fine/coarse difference%) / 100) × (1 − moisture% / 100) × 46.214 Copy
PPG = ((FGDB% − fine/coarse difference%) / 100) × (1 − moisture% / 100) × 46.214
The moisture term converts a dry-basis figure to the as-is grain the brewer weighs out. 46.214 is the yield of pure sucrose (Palmer, How to Brew).
if the addition has neither ppg nor an extract percentage.
Yield of a fermentable in points per pound per US gallon, as-is.
Uses
ppgwhen the addition has one (a user override, or a catalog that publishes PPG directly). Otherwise it converts the maltster's fine-grind dry-basis extract figure:The moisture term converts a dry-basis figure to the as-is grain the brewer weighs out. 46.214 is the yield of pure sucrose (Palmer, How to Brew).