menschmaschine
Well-Known Member
OK, I know it sounds crazy, but I can't seem to get it right. I've brewed 3 AG batches so far and they all had an OG higher than expected... anywhere from 8 to 11 points high. I got the grain for my first batch with a predicted efficiency of 75% and the OG was high. I chalked that up to inexperience and did the same for the second batch... still too high. So for the 3rd batch, I bumped up my efficiency to 80% in Promash and the OG was still too high (11 points!). By the 3rd batch, I thought I had everything right. My mash temps and times were dead-on, my sparge was nearly perfect, and my preboil volumes were exactly what Promash calculated. So, what could be causing this? My system is a 3-tier, 3-keg, 3 burner system. I fly-sparge. My well water has a low pH (like 5.5 or less). Any ideas? What is considered maximum efficiency? Should I just bump up my efficiency in Promash to 85%? Many thanks.