Originally Posted by WoodlandBrew
Are you asking what typical grain absorption is? The most common number I see is 0.5 quarts per pound, so for 12.5 pounds that's about 1.5 gallons.
Old thread, but hoping you'll see this.
(Searched your username and absorption and this is the only thread that came up.)
Just starting to read your Brewing Engineering 2nd Edition. You use .8 qts/lb grain absorption in the book. I have been using .6 qts/lb with 2 quarts of dead space to match what I've learned through experience. I've always suspected the the absorption was higher and the dead space lower, but the .5 number that's often quoted had me second guessing.
Have you found the .8 number from the book to be correct with your system?