Originally Posted by Kaiser
I got the idea from a mash-tun design, where the whole mash (grains and liquid) are constantly pumped through a heated tube in order to raise and keep the mash temp.
When designing a heated mash system I'm also interested in being able to heat up the mash evenly. With the constant recirculating I'm afraid that, through channeling and the increased flow rate necessary, it will not be possible to heat the mash evenly.
But than again, I haven't build or used one and I'm just throwing my thoughts out here for discussion.
The main thing with herms/rims is clairifying worth, and that is by compacting the grainbed. Pumping the other way is totally waste of everything...
Herms/rims has one thing better than the rest... You get a better efficency, bacause of stable temperature and the sirculation, but loose some vital mash ingreedence like yeast nutrient. Stabillity is like the rest.....
The one thing is time savings... Nothing else