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Old 06-22-2008, 07:47 PM   #1
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Default getting clear liquor from the mash

In my opinion, this is the really difficult bit. I have 20 inches of one inch diameter copper tube with hacksaw slots cut into it. The liquor runs clear after a gallon or so (which is returned to the mash), then I get maybe a gallon of liquor, then it slows to a trickle and clogs up, leaving at least 3 gallons of liquor still in the mash. I tried getting the liquor out slower, but it still clogged up.

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Old 06-22-2008, 07:50 PM   #2
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Sounds like a stuck sparge. Are you using a lot of wheat?

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Old 06-22-2008, 07:52 PM   #3
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Are you batch sparging, or fly?

You could try some rice hulls as an easy solution. Toss a bunch in there, they'll keep the mash a bit "fluffier" and let it drain better. If you're batch sparging, I've never had a stuck mash using a simple SS braid (the kind you take off a water heater hose). Can't really use it for fly sparging, though, as it does promote channelling (not an issue when just draining the wort with a batch sparge).

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Old 06-23-2008, 07:38 PM   #4
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Sorry dont understand the terms batch sparging or fly. After mashing I attempt to get all the liquor away through the copper pipe, adding water at 180 deg c so that there is always around half inch of liquid above the mass of grain. I stop ideally wheb SG of run off is 1.020. I only use crushed maris otter pale malt grain in the mash, crystal malt etc goes into the boil.

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Old 06-23-2008, 08:27 PM   #5
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You are fly sparging. As long as you are constantly adding water, that means you are getting a stuck sparge.

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Old 06-23-2008, 08:30 PM   #6
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How fine is your grind?

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Old 06-23-2008, 09:43 PM   #7
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Are your slots on the top or the bottom. They need to be on the bottom.

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Old 06-24-2008, 12:11 PM   #8
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Sidebar - you're puting grain in your boil?

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Old 06-24-2008, 03:20 PM   #9
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I have a 1/2" slotted copper manifold (slots down) in a rectangular shape with an overall length of 30". I grind with a corona mill very fine. I batch sparge and add 2 oz of rice hulls to the mash - never have a stuck sparge.
Rice hulls are cheap and make your brew day easier.

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Old 06-24-2008, 04:18 PM   #10
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AHHHH - I use slots up - nobody told me. Yes I add crystal, amber and chocolate malts to the boil, I always have. My beer is pretty good, although I say so myself.

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