Hey guys. This is the 2nd time that this happens to me (in a total of 4 batches I have done so far) and I can't figure this out. I am starting with ~75% mash efficiency and my brewhouse efficiency ends up ~65% ! Pre boil vol. 13.87L, pre boil gravity 1.046 Post boil vol. 7L, post boil gravity 1.074 Boil time was 108min (baby woke up and I wend 20 mins behind from intended 90 min boil). What am I missing here?