Originally Posted by Run4BeerCO
I get my brew water from Eldorado Springs. This is the basic water analysis information from their website:
I'm also searching for a reason for my low efficiency. Could this be part of the problem? Right now this and the crush of my grain are my only suspects.
I brew exclusively with Eldorado Springs Water now. I think all of our lower efficiency batches (as low as 40%) have been due to bad mashing. We are now hitting 65% and occasional 70% or 75% as we improve our mashing techniques.
Things that I think have helped us (YMMV):
1. Using our keggle as an HLT with a pickup tube to transfer water with less heat loss (old technique used pitchers out of a kettle).
2. Performing rests in the beta range and the higher alpha range.
3. Tightening the grind on our mill
4. Dampening (lightly!) the grain before milling to keep the husks more intact.
5. Lengthening our mash
6. Pulling more liquid off the mash (I think we previously ended it too soon). We don't use gravity or sweetness but just wait until the wort coming off starts to include tannic flavors that we don't want. Then we switch it to another kettle for an end run beer.
7. Milling much slower than before (drill RPMs).
I might try mill width, milling rpm, and adding a beta rest.
I don't think the Eldo water is to blame.
PS: Some people tell me they get 85% efficiency. I'm not sure I'd believe them if they aren't doing RIMS/HERMS unless you are looking at their math...