Question on absorbtion in beersmith

[claphamsa]

So, I made a Cal Common this weekend, and ended up short on volume, and I started thinking... and looking at the recipe....My mash was 6G and there were 2 sparges of 9.5 G (total) that gives me a total of 15.5 G water used..... the boil volume was supposed to be 12.5 G is it logical that 19 LBs of grain would only absorb 3 G water? Im pretty sure it absorbed more. I also checked and the ratio is set at 1.25Q - 1LB grain..... but thats not an absorption factor...

 

[flyangler18]

At what point were you short on volume?

The absorption figure is really only theoretical.

 

[claphamsa]

both pre and post boil. (I just got a new pot.... and wasnt 100% sure I was short )

 

[GilaMinumBeer]

I am just hung on grain absorption being theoretical.