Amazing thread. Quick question though. I'll be doing a 5 gallon PM Zombie Dust clone, I'm still very new to brewing and have only done a few extract brews, I generally start off with 3 gallons pre-boil and then top up to 5 gallons in my primary once the wort is chilled etc. The recipe I'm using calls for 2.5 lbs of grain so here's my question.
So with the partial mash....2.5 lb grains @1.25 quarts (water) = 3.125 quarts which is roughly .78 gallons correct? I'm going to be doing a 3 gallon boil and then top it up to 5 gallon post boil. How much wort can I expect that 2.5 lb of grain to absorb?
I just want to make sure that when I add my "first wort" to the my other wort which I'll be steeping with my bag of grains that it ends up around 3 gallons.