Let's say you didn't know Booner's Casual Corn exists, but you want to invent an all corn recipe.

You want to shoot for 8%ABV using no malt, enzymes only, and wonder how many pounds of corn per gallon would do this.

A diastatic study will do you no good without malts. You'll have to use PPG (points per pound per gallon).

Here's how you "invent" Booner's:

Using the gravity/ABV formula and assuming FG=1.000:

(SG - FG) x 130 = desired 8%

SG = (8% / 130) + 1.000 = 1.062, which is ---->62 PPG

You check a few sites and see corn has a PPG of 33. ---->33 points

Using PPG calculation:

(Gallons x PPG) / points = pounds of grain required =

(1 x 62) / 33 = 1.88 lbs. per gallon

Coincidentally that's close to Booner's 1.8 lbs. per gallon and 8.2%.

Real life being involved, Booner's finished at 0.994 for the author, boosting the ABV from our assumed 1.000 finish and also requiring a little less grain.

Veterans please let me know if I've made errors.

This is just an exercise and tutorial to analyze an obviously proven recipe. I thank all of you that have helped me recently with PPG education.