- Apr 1, 2015
- Reaction score
Thanks for the feedback. I had my reservations about double crushing. I'm brewing again in 2 weeks, I'll send post photos then.No doubt that a stuck mash would not be good in this system. Like most recirculating systems, without manual intervention, the PID controller would "runaway" and overheat the mash (or at least the wort in the grant). And taking measures to get it back into equilibrium could be a real PITA.
However, crush has a strong impact on any mash system's efficiency. Since it's reasonable to expect better than 63.5% mash efficiency on this system without stuck mashes, I think it's very reasonable to question whether the crush is adequate. Unfortunately when your LHBS controls the crush, not only might it not be adequate, it might vary a lot from time to time.
If you have some pictures of crushed grain, we could probably help you tell whether it's good enough. And you may want to consider investing in a mill.
Is a Calcium level over 100 ppm really going to make a huge difference on efficiency. Reviewing my most recents beers, I've kept the Calcium levels between 60-80 ppm. Would increasing that to over 100 ppm really up my efficiency that much?