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Author Topic: Not converting??  (Read 4042 times)

Offline bierview

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Re: Not converting??
« Reply #30 on: March 21, 2016, 11:42:54 am »
FG........1.058.

Just a heads up, fg refers to the specific gravity post fermentation, or final gravity aka fg.

Typo..........OG 1.058

Offline bierview

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Re: Not converting??
« Reply #31 on: March 21, 2016, 11:44:23 am »
FG........1.058.

That's pretty dang perfect, ain't it?  Although, they do say, life begins at 1.060......... ;)

Yes some people do say that......... ;D

Offline majorvices

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Re: Not converting??
« Reply #32 on: March 21, 2016, 02:30:37 pm »
I didn't see if it was posted here but if there is any husk material in your sample the iodine test will turn black.

Offline brewinhard

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Re: Not converting??
« Reply #33 on: March 21, 2016, 02:33:15 pm »
I have never, ever done an iodine test for conversion and have never not had my grains make a sugary wort. Ever.

Offline HoosierBrew

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Re: Not converting??
« Reply #34 on: March 21, 2016, 03:15:38 pm »
Way back when I did an iodine test or two ,and found the results worthless and annoying enough to never do another. Never failed to get enough sugary wort either.
Jon H.

Offline dmtaylor

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Re: Not converting??
« Reply #35 on: March 21, 2016, 03:24:08 pm »
I have never, ever done an iodine test for conversion and have never not had my grains make a sugary wort. Ever.

Bingo.  We win.
Dave

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Offline Phil_M

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Re: Not converting??
« Reply #36 on: March 21, 2016, 03:41:48 pm »
I had an iodine test fail on a beer that ended up hitting all targets exactly.

Haven't done one since.
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Offline Wort-H.O.G.

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Re: Not converting??
« Reply #37 on: March 21, 2016, 04:19:54 pm »
Im so glad I never did one when I first started brewing. It would have given me angst to think I hadn't converted...and I wouldn't have needed that early on.

Lots of old readings direct Brewers to make sure you get conversion and run an iodine test. Never once had a batch not convert as it should in 5 years.


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Offline HoosierBrew

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Re: Not converting??
« Reply #38 on: March 21, 2016, 04:41:10 pm »
When I started brewing, the limited number of homebrewing books out there almost all made the iodine test the 'be all end all' of knowing you had good conversion. All it took was a failed iodine test or two with beer that came out good to tell me it was totally worthless.
Jon H.

Offline euge

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Re: Not converting??
« Reply #39 on: March 21, 2016, 04:44:34 pm »
The only time I had trouble with conversion was with a thick mash @1qt/#. The result was a serious chill-haze.
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Offline santoch

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Re: Not converting??
« Reply #40 on: March 21, 2016, 05:39:49 pm »
Here's one time I'll disagree that the test is bogus.

I had a Hefe batch fail to convert during a very rainy spell in March many years ago.  I was new to AG, and I didn't check my mash pH.  2 hrs of mashing and testing and the iodine test was always black.  Added a tsp of gypsum and the iodine test showed full conversion within 15 mins.  Essentially, the aquifer for our city water was "channelling" and I was mashing in basically what was basically rainwater.
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Offline majorvices

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Re: Not converting??
« Reply #41 on: March 22, 2016, 05:51:18 am »
I haven't done one in years either, but if I had ta lot of adjuncts I would.

But just to reiterate - if you have husk material your test will always show unconverted, which is why so many people have problems.

Offline dmtaylor

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Re: Not converting??
« Reply #42 on: March 22, 2016, 06:15:47 am »
I haven't done one in years either, but if I had ta lot of adjuncts I would.

But just to reiterate - if you have husk material your test will always show unconverted, which is why so many people have problems.

More common with BIAB (no recirculation) I would bet.  I brew in a bag too but I also "filter" or do a sort of fly-sparge through layers of colanders and mesh.
Dave

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Offline bierview

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Re: Not converting??
« Reply #43 on: March 22, 2016, 07:43:14 am »
I haven't done one in years either, but if I had ta lot of adjuncts I would.

But just to reiterate - if you have husk material your test will always show unconverted, which is why so many people have problems.

No husk material.  I use a very fine strainer for the sample.  Anyway, the carboy is happily bubbling away as I type.