I'm not confident the recipe editor is predicting OG properly when batch target is set to fermentor for BIAB brew method. I did my first brew using a recipe I scaled in Brewsfriend with batch target set to fermentor. It predicted a pre-boil gravity of 1.027 with 1.068 OG post boil (that should have been a red flag that I wasn't going to gain 21 points due to evap). My actual OG was 1.047! I'm a BIAB brewer and have 10+ batches under my belt with detailed brew records to measure efficiency into kettle and efficiency into fermentor along with volume losses due to grain absorption, boil off and trub loss. When I reviewed the recipe and my equipment profile to try and figure what went amiss I experimented changing batch target to kettle and setting batch volume to measured volume into kettle. Viola, predicted OG was correctly predicted at 1.048. Not to trust a single recipe I entered my previous beer recipe I brewed and used my brew house measurements to set batch volume and efficiencies for Brewersfriend's calculation. With batch target set to fermentor the predicted OG was over 20 points to high vs my measured OG from my brew records. If I set batch target to kettle and changed efficiency to my measured eff into kettle the predicted OG is with in a point of my actual OG measured. It appears with brew method set to BIAB and batch target set to fermentor the OG prediction is approx 20 points to high. At this point I'm not going to use batch target of fermentor until I can figure out what's causing the high OG prediction. Has anyone else had this experience?