I haven't really been able to find a clear answer on this by searching, so I'm starting a new thread.
Step mashing seems to be a debate amoung many on whether or not you are really "step" mashing, and I get that. I'm more interested in what is possible for temperature ramp up rates in a herms system.
What I did find in searching, is that many run their recirc pump wide up when attempting to increase temperature. I also found several threads concerns about grain bed compaction and flow rate, which appears to be recommended at no more that 1GPM in most cases - so, is wide open a bad idea?
So, let's here it? Can you safely run wide open? Are there parameters around when and how? My mash tun will be running 9000W of heating juice, so I should have the power needed, it is now a matter of concerning myself with getting high flow rates, and if high flow is even possible. (The whole system is built with 15G keggles)