Help with Mash Recirculation

[Nmnbrewer]

Reviving an old thread. Is anyone using a COFI style recirculation arm in a MT with a false bottom and no bag/basket? Maybe I have missed it in this thread but thinking of buying a piece of copper and drilling holes in it for recirculation (bottom to top) jamming it down in the center of the grain to try out to see if it will help with mash efficiency, but wasn't sure if the draw from the bottom of the tun under the false bottom along with center-out wort recirculation above it would be fighting each other or not. Right now I use the standard silicon hose draped above the grain to whirpool. I seem to get some channeling around the side and a cone in the middle and thought this might help.

I use the same method with the hose. I’m a single vessel brew in a basket guy. I’ve seen the same results as you during recirculation but my efficiency has been so consistent at 75% I just don’t see a reason to change it.

 

[jturman35]

I have the COFI and have three batches under my belt. I’m in the 70-80% mash efficiency. BH is 65-70. I recently tried Scotch Ale 1.080 and came up with 1.066 OG. I started a thread under the electric brewing section trying to get suggestions for improvement. My next batch I plan to stir the grains which I haven’t before. The benefit to the bag is you guys can easily stir without having to remove anything. Just Something to think about.