- Thread starter tonyc318
- Start date

Edit: Mine was a 5 gallon batch.

http://www.rackers.org/calcs.shtml

When I plug your numbers in it said you need 15.44 gallons of mash space.

12 gallons preboil + 1.9 gallons grain absorbtion = 13.9 gallons or 55.6 quarts/19 lbs =2.93 qts/lb mash thickness

I figured 0.10 gallons per pound for grain absorbtion, I'm sure if you squeezed the hell out of that bag you could probably get that down to 0.05 gallons per pound, giving you another 0.8 gallons of space, for 14.64 gallons needed mash space. Either way it's very tight, can a cut keg hold a full 15.5 gallons?

- Thread Starter
- #5

That's looking tight. Think I will choose a thinker mash and then pour 168 degree water over the grain bag.Buna_Bere said:

http://www.rackers.org/calcs.shtml

When I plug your numbers in it said you need 15.44 gallons of mash space.

12 gallons preboil + 1.9 gallons grain absorbtion = 13.9 gallons or 55.6 quarts/19 lbs =2.93 qts/lb mash thickness

I figured 0.10 gallons per pound for grain absorbtion, I'm sure if you squeezed the hell out of that bag you could probably get that down to 0.05 gallons per pound, giving you another 0.8 gallons of space, for 14.64 gallons needed mash space. Either way it's very tight, can a cut keg hold a full 15.5 gallons?

- Thread Starter
- #7

According to the rackers calculator, I should be able to fit 19# of grain and 12 gallons of strike water in my keggle. Then I will shoot to heat up 3-4 gallons, and sparge the grains til I get my preboil target.