I'm starting to play around a bit with no boil/raw ale recipes, and I find them difficult to put together in Brewer's Friend for a couple of reasons... 1) It assumes there will always be a boil, and for example, in my 6 gallon no boil batch (0 minute boil time specified) it is still telling me that I need to collect 6.76 gallons from my mash runnings. 2) It then calculates an SG (some how, not sure) which is 6 points higher than my boil gravity (1.054 vs. 1.048); however, in a no boil situation, there shouldn't be any difference between your "boil" gravity and your SG, since you're not boiling thus reducing the volume/increasing the gravity of your wort, right? I can sorta see how 1 makes sense how it is... It says I need to collect 6.76 gallons because my kettle dead space is .13 gallons, hops will absorb another .11 gallons, and I've got a misc. losses in my profile setup to .5, so if you do the math you'd arrive at 6 gallons in the fermenter (which is what I was shooting for), but I don't get the SG vs. boil gravity difference if you specify a 0 minute boil.