Grain Absorption

by **homerjay** » Mon Sep 29, 2008 3:45 pm

What is the grain absorbtion set at and is it adjustable?

by **dasein668** » Mon Sep 29, 2008 3:57 pm

It is a user-definable constant which can be adjusted by opening the preferences panel and going to the "constants" tab. It is listed as "Malt Water Absorbtion."

by **homerjay** » Tue Sep 30, 2008 1:02 am

thanks

by **Baron Ken** » Wed Oct 29, 2008 1:06 pm

Have only done 2 AG batches now, but I seem to have different grain absorption constants for each recipe.
It seems BTP does not keep the grain absorption value with the recipe (it's an overall constant).

1st:
8.25 lbs grain x 1.25 qts/lb = 2.6 gal strike water, got 1.5 gal out (0.13 gal/lb absorption rate). This was a LHBS grain mill crush.

2nd:
12.3 lbs grain x 1.22 qts/lb = 3.75 gal strike water, got 1.75 gal out (0.16 gal/lb absorption rate). This was using my new BarleyCrusher at factory setting.

Does the crush affect grain absorption? And if so, shouldn't BTP keep the grain absorption constant as a recipe value and not a general value?

Grain Absorption

Grain Absorption

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