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Old 07-18-2012, 08:37 PM   #1
bjohnson29
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Default 3 Tier Gravity Setup Question

I'm giving some thought to a three-tier gravity fed system but had a few questions: How long can I expect it to take to drain 4-6 gallons from the HLT into the MLT? Additionally, what kind of temperature loss can I expect during that time?

Thanks in advance.

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Old 07-18-2012, 08:54 PM   #2
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Originally Posted by bjohnson29 View Post
I'm giving some thought to a three-tier gravity fed system but had a few questions: How long can I expect it to take to drain 4-6 gallons from the HLT into the MLT? Additionally, what kind of temperature loss can I expect during that time?

Thanks in advance.
temperature loss isn't a big deal. If you have an insulated HLT it will be minimal. Bottom line is that you overheat your strike water then stir down in the MLT until you get to strike temps. It should take 5 minutes or less to drain that off into MLT.
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Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
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Old 07-18-2012, 09:02 PM   #3
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Thanks. I've always just dumped, but I'm getting really tired of hoisting a kettle full of hot water. Right now, I just overshoot 12° and it works out perfect. If I were to drain as mentioned above, any thought on how much over my mash temp to target?

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Old 07-18-2012, 09:15 PM   #4
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Originally Posted by bjohnson29 View Post
Thanks. I've always just dumped, but I'm getting really tired of hoisting a kettle full of hot water. Right now, I just overshoot 12° and it works out perfect. If I were to drain as mentioned above, any thought on how much over my mash temp to target?
Personally I've always gone 180+ for strike water and then sealed up the MLT (no grain in there yet) to let it absorb some of the heat (pre-heat). I check every 5-10 minutes while I finish getting other things ready, put sparge water in HLT, make sure yeast is sitting out if repitch, weigh hops, etc. Then I always dough-in a little high because it takes time to do it right and I'd rather stir down than add more hot water (that I probably don't have prepared already).
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Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
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