My mash efficiency is very good, 80-83% and my preboil is probably where it should be and not mess with it as it is always higher than estimate. Brewhouse eff is set to 75%. Playing with the Builder some more i found that an original recipes estimate seems reasonable say for a 5.25g batch it...

You will not have under pitched. It is the best you could do to bring factors other than the hop utilization into line. I too have had frustration with The Recipe Builder's pre-boil estimate and have decided to ignore it. It is always way low and I believe it is due to it not taking into...

I have never come close to getting pre boil gravity close to recipe est.in BF.though my pre boil volume was as predicted. It seems that it will not take into account my boil off amount in my profile which is set to .5gal but rather uses something close to 1.5 gal. If you back calculate from...

BF recipe pre boil gravity estimate is not usable and has lead me astray numerous times. way low and it seems it does not correct for boil off as entered in your profile but more along the line of 1.5 gal per hr while my profile calls for .5 gph. I plan to use the tool calculators in the future...