I definitely agree, something had to change, I must be missing it! I'm going back through my notes, the sparge was 60 minutes as opposed to 90
That could make the difference, though the drop was bigger than I'd expect.
and thinking about it again, there was about 30 minutes where I wasn't watching the water level and it was a few inches above the grain.
Also worth noting, towards the end of the sparge, i emptied the HLT completely and let it sit on top of the mash. I usually have about 2-3 gallons left in the HLT. I ended up with about 5-6 gallons of water (shown on the site glass) in the mash tun. Not sure if that matters but maybe too much water got through and not enough wort???
Nope. Doesn't matter. You are using the water to rinse the grain and slowly push the sugary wort out. Doesn't matter if there's 1 gallon or 1000 gallons still waiting to get through on top of the grain bed the moment you stop sparging. It's just a lineup of water that never made it through.
We say "keep an inch or so of water above the grain bed" only because we want to keep a minimum amount of water over the grain bed to ensure all sugars are rinsed, but no more than an inch or so because if someone has a poorly performing false bottom (not your case) too much water can compact the grain bed causing a stuck flow. I've sometimes been in a hurry to empty the HLT because I want to turn off the water pump and leave the room and have increased the water pump flow such that I dump the rest of the HLT on top of the mash and get half a foot of water over the grain bed. No difference in efficiency or anything else.
Grasping at straws, does darker grain, like chocolate, need to be milled separately from the other grains, like the 2-row?
No. Some will mill separately and it to the mash right before sparging just get a smoother taste. I rarely do (my recipes will mention when I do).
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Link Posted: Wed Jan 04, 2017 2:47 pm Post subject:
Is your sight glass allowing channeling? If your liquid level is above the top sight glass port, you could be channeling through it instead of through the mash. _________________ Kal clone controller, 30 gallon Spike Brewing kettles, 6 tap keezer
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Link Posted: Wed Jan 04, 2017 9:08 pm Post subject:
Thanks guys! Very frustrating when you can't pinpoint the problem. As much as I don't think I did, I must have missed a grain measurement. I'm going to add a step and weigh the full bucket before I mill. That will give me a double check of my grain weight. Any measured step I can add will help remove problems like this in the future.
Oh well, guess I'll have 2 batches of brown, there's worse things that could happen
On a side note, do you ever move the hose while sparging to try and eliminate a water channel, or is this not necessary because the weight of the water on the grain rinses it well enough? I haven't done this but have thought about it, just not sure if it would even make a difference.
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Link Posted: Wed Jan 04, 2017 11:16 pm Post subject:
On a side note, do you ever move the hose while sparging to try and eliminate a water channel
No. Don't move the hose. You'll disturb the grain bed. If you have channeling issues (you shouldn't with your Blichmann false bottom) moving the hose would only make the channel appear elsewhere almost immediately.
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