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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Attenuation headaches solved
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Old 10-04-2012, 02:38 AM   #1
KIAKillerXJ
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Default Attenuation headaches solved

Been fighting seemingly poor attenuation for awhile, which had been irritating the heck out of me, since I prefer most beers to finish pretty dry-- especially my IPA

Long story short-- it was the dumb thermometer reading 4* low. So I was always mashing that much higher.

Last two batches right on the money. For as
Much as I brew it was really irritating to have so many batches sub par.

I'm just happy and felt like sharing!

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Old 10-04-2012, 03:29 AM   #2
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That right there is a reminder to check mine on a regular basis. It's been a few weeks since I last checked.

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Old 10-04-2012, 03:34 AM   #3
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Yeah, for sure! It's not like I hadn't done it before, but at some point I guess it wandered.

Been scratching my head over water, etc and it was really simple!

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Old 10-04-2012, 03:50 AM   #4
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Quote:
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4*
Alt0176
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Old 10-04-2012, 05:10 AM   #5
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You should feel lucky. I just discovered a few days ago my thermometer has been off by 13°. I believe I brewed around three 10 gallon batches with it. I usually mash between 150° and 152°, so in reality I was mashing around 140°. My efficiency has been terrible, around 55%, down from 75%. I was getting ready to tear my mashtun apart until someone on here mentioned that my thermometer was adjustable. I guess you learn something new everyday.

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Old 10-04-2012, 05:29 AM   #6
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Damn it another thing ill be obsessed over now.

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Old 10-04-2012, 05:29 AM   #7
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Quote:
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Alt0176
Use that one a lot as a machinist. It's right up there with alt0177 +/-
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Old 10-04-2012, 01:47 PM   #8
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been having extremely poor efficiency on my last two batches. Gonna test my thermometer when I get home today. Didnt EVER think about this.....oh well. Its all about the learning process.

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Old 10-06-2012, 08:45 AM   #9
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Always a good idea. My digital bit the dust two brewdays ago which was a great reminder to calibrate the new digital AND the old alcohol thermometer.

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Old 10-06-2012, 09:41 PM   #10
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I'm pretty good about using 2 or more during my brew day. I have a lab calibration liquid thermometer that I use for my mash. I leave it in the cooler and its extremely accurate. Never I have a thermapen on its way. Hope in that'll be just as accurate but faster.

It's always worth checking them once in a while though. Same with your hydrometers!

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