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Old 01-22-2012, 12:39 AM   #1
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Default I cant get my mash tun to drain on mash out

Help, I am on my 2nd all grain batch and both batches I could not get the wert to drain. I am using a 10 gallon rubbermaid beverage cooler with 3/4 inch braided SS. At first I get a decent flow but then it tapers off to just a few drips. I can blow through the valve and the flow is great for 10 sec then with in 45 seconds it is just drips.
My first batch did this but when I batch sparged it drained fine.
Any ideas or suggestions? I am trying to drain it now.

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Old 01-22-2012, 12:48 AM   #2
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Are you slammin' the valve wide open when you turn it on? Might be compacting the grain bed

Also....how fine is your crush?

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Old 01-22-2012, 12:48 AM   #3
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Quite possible your braid is collapsing.

What is your grain bill for your last 2 batches?

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Old 01-22-2012, 12:52 AM   #4
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Quote:
Originally Posted by StoneFan
Are you slammin' the valve wide open when you turn it on? Might be compacting the grain bed

Also....how fine is your crush?
I think they are on the right path. You need to lauter slowly as to not compact the grain bed.
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Old 01-22-2012, 12:58 AM   #5
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Thank you for your quick replies. I slowly opened the valve about 1/3 of the way to vorlof and slowly opening it more. My braid has a copper spring in it to prevent the collapse.
Could the braid be too fine? If I rub my spoon against it the flow gets stronger.
I am not sure about the crush. I used the mill at my LHS and we can not adjust the mill.

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Old 01-22-2012, 12:59 AM   #6
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Quote:
Originally Posted by E-Mursed View Post
Quite possible your braid is collapsing.

What is your grain bill for your last 2 batches?
My grain bill was 10 LBs for the first and 11.5 for this one.
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Old 01-22-2012, 01:14 AM   #7
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Sounds like you are vorlaufing to fast.

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Old 01-22-2012, 01:21 AM   #8
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Quote:
Originally Posted by BrewingReverend

My grain bill was 10 LBs for the first and 11.5 for this one.
X lbs of what? Wheat or rye included in this? If yes- what percentage. It sound like a stuck sparge. Are performing a mash out?
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Old 01-22-2012, 01:27 AM   #9
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X lbs of what? Wheat or rye included in this? If yes- what percentage. It sound like a stuck sparge. Are performing a mash out?
This batch is 9 lbs of Golden Promise Malt, 1.5 LBs of Gambrinus ESB malt and 1 LBs of British Crystal. No rye or wheat in either batches.
Any suggestions on how to get it unstuck? I have tried stirring it, blowing in the tube and scraping the braid with my spoon.
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Old 01-22-2012, 02:24 AM   #10
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Gotta let it drain slowly. If it gets stuck, whip out your giant spoon and scrape the spoon gently along where the braid is on the bottom. My braid gets a bit smoooshed toward the end of mash out, I just close the valve, stir a bit, then open again. It's just something you have to get a "feel" for... The more I try to rush it, the more irritated I get when the draining gets stuck.

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