Sun Dec 23, 2007 10:30 am
Is this extra expense, and extra fuss worth it? I have always (with one exception - a Rye ale with a lot of other huskless grains) been able to get crystal clear runoff from my tun. I don't even use a false bottom or a stainless mesh screen. I use the old Papazian method - copper manifold with a bunch of saw cuts it in. Sometimes I have had to vorlouf with as much as 2-3 quarts before it is clear. I also get a pretty consistent 75% efficiency with a fly sparge. Gotta go real slow - 1 quart/min. My LHBS mills my grain. Perhaps your crush is too fine, too many adjuncts (use some rice hulls), or you are going to quick?
If you are using a false bottom (or a properly designed manifold) - one factor that can cause channeling/poor efficiency is going to fast. I seriously doubt that the pad will "prevent channeling". Your false bottom is already providing a low path of resistance along the entire bottom. The other factor is bed depth. If your grainbed is too shallow - you might get channeling.
I understand that occasionally we homebrewers have to do strange workarounds that the big boys don't do. I just don't see much value in this one.
Mylo
"Life is too short to bottle homebrew." - Me
"HEINEKEN? Fuck that shit! Pabst Blue Ribbon!!!" - Dennis Hopper, in Blue Velvet