Batch sparge

This calculation is presented in John Palmer’s How to Brew for scaling up a regular-sized all-grain recipe to the size needed for the batch sparging technique he presents. Normally, recipes assume an extract potential of about 36 ppg for all-grain brewing, but the batch sparge technique instead yields 28 ppg; this calculation will tell you what your scaled-up grain bill for the recipe should be, as well as how much water you’ll need for the mash.

Enter your inputs
Enter the target gravity (OG):
Recipe’s total grain bill (pounds):
Recipe batch size (gallons):
Recipe boil volume (gallons):

Water-retention coefficient:

Batch sparge water volume (quarts): -
Batch sparge mash ratio (quarts/pound): -
Scale-up factor: -
Grain bill (total pounds): -
Volume of water for mash (quarts): -
Boil gravity: -
Gravity of 1st runnings: -
Gravity of 2nd runnings: -
Total volume of mash (quarts): -

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  1. Pingback: Jon Abernathy » Batch sparge grain bill calculator

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