Grain Absorption Rates: Cooler Mash Tun Versus BIAB (An Experiment)

Wanting to a handle on the differing grain absorption rates of my various all-grain home brew systems, I did some experiments to determine the real values to use for each type of system when designing a beer recipe so that I can make beer that closer resembles the recipe.

Two types of brewing systems are examined: cooler based mash tuns and brew in a bag (or basket).