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Old 02-07-2014, 07:25 AM   #1
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Default Stupid Inaccurate Thermometers!!

My last 3 batches have turned out very poorly -- and I think I've discovered why. A while back I found that my floating thermometer had broken, so I had to use a digital thermometer instead.

Even though I had checked the digital against boiling water and in the freezer, I still didn't trust it, but I had no option. Since then I acquired 2 new thermometers, and -- compared to them -- it reads high by about 9 degrees in the mash temperature zone, which means I mashed way too low, ruining my starch-to-sugar conversion and changing the profile of the beer. (These were beers I have successfully brewed before -- with the floating thermometer.)

It's enough to piss off the Good Humor Man, and I'm not the Good Humor Man!

The take away is: check your thermometers and have reliable backups.

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Old 02-07-2014, 07:30 AM   #2
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James - get a Thermapen and never look back.

http://www.amazon.com/Splash-Proof-S...ords=thermapen

They are pricy, but in my view they are worth every penny.

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Old 02-07-2014, 11:30 AM   #3
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I use this one and love it!

http://www.amazon.com/Taylor-Profess...al+thermometer

I use it for both my BBQ and for brewing. It has an infrared built in, which reads within 1* of the probe. When I want to check the fermentation temp on my carboy, I don't have to pull the bung off, worry about sanitizing, worry about oxidizing, or worry about adding a contaminate. I just use the infrared...it's the sh@t!

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Old 02-07-2014, 11:43 AM   #4
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I also use thermapen and just ordered the chef's alarm (timer and thermometer in one unit).


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Old 02-07-2014, 11:53 AM   #5
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The "Stupid inaccurate thermometers" sentiment and messed up batches is exactly why I got my Thermapen. Worth every penny.

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Old 02-07-2014, 06:50 PM   #6
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Another vote for Thermapen. After I got it I wondered why I waited so long to get one.

I use it just as much in the kitchen when I am cooking. Great device.

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Old 02-07-2014, 07:09 PM   #7
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I bought my Thermapen for smoking, but it's more important for brewing.

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Old 02-07-2014, 07:46 PM   #8
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And it has completely eliminated all my fears about grilling fish. It makes it SO easy to keep a close eye on the fish's internal temp and it prevents me from over- or under-cooking it.

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