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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Stuck mash...911!
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Old 02-03-2013, 09:02 PM   #1
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Default Stuck mash...911!

Mash has been sitting at 150 for 80 minutes. Iodine says it hasn't converted. I've raised the temp up to 157. Anything else to do?

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Old 02-03-2013, 09:05 PM   #2
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The iodine test is so often wrong that I advise people to not even bother. If you know you've been at 150 for 80 min., you've gotten conversion.

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Old 02-03-2013, 09:06 PM   #3
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Taste it. Is it sweet? You need a refractometer for times like these!

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Old 02-03-2013, 09:06 PM   #4
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Whats the grain bill. Should have easily converted at 150 for 80 mins.

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Old 02-03-2013, 09:08 PM   #5
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I'm with everybody else, drain it and boil it. I gave up on iodine a long time ago too.

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Old 02-03-2013, 09:09 PM   #6
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Quote:
Originally Posted by idigg View Post
Taste it. Is it sweet? You need a refractometer for times like these!

This.
And...
Cool a small amount And take a gravity reading with your hydrometer.
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Old 02-03-2013, 09:09 PM   #7
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Stuck mash refers to the wort not draining from the mash tun. What is the grain bill? 9-1 says ur converted.

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Old 02-03-2013, 10:32 PM   #8
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Stuck mash refers to the wort not draining from the mash tun. What is the grain bill? 9-1 says ur converted.
Stuck sparge...
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Old 02-04-2013, 01:30 AM   #9
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Stuck sparge...
Hmmm, my bad.
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Old 02-04-2013, 03:12 AM   #10
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After a tip from a homebrewer friend via e-mail, I saw that I was getting husk in the test sample. Got a clean sample, and voila! Conversion. Strangely enough, I still hit all my numbers except the FG, which was 6 points high. PBG and OG were on the money.

Thanks for the replies, though! I usually forget the iodine, and it always works out either way. So I guess I'll forget it altogether.

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