Just wondering if anyone has any words of wisdom regarding brewhouse efficiency... What should I be recording on every brew to mark efficiency, other than OG etc. Today, my recipe stated I should have got an OG of 1.046, but I actually got 1.039. So quite a way off.. and if I get the OG down to what the recipe says 1.006, it makes the ABV right down to 4.3%.. almost a whole % below where I wanted it. Water is a problem for me, it seems.. as I don't have a specific way of measuring acurately. Just a 2 litre jug which I use to measure water between vessels. (I've now purchased a flow meter, with solonoid valve so that I can get water bang on. I suspect I should wait until I have that before I start adjusting recipes to match my poor efficiency? What calculations do you make, to get your % number of brewhouse efficiency?