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Old 01-12-2011, 04:04 AM   #1
Got Wood.
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Join Date: 01-09-11
Location: Torrance, CA
Default Thermometer Accuracy?


So I drilled a small hole in the lid of my kettle grill in order to insert a thermometer like this one:

My question is: how accurate of a reading will this give me for the temperature on the cooking grate? I've been smoking @ 220ish and I've heard that the temperature at the grate is lower.

All advice welcomed! THANKS!
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Old 01-12-2011, 05:35 AM   #2
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The only way to know for sure what your grate temp is, is to monitor it at grate level. How close to the grate is the thermometer?
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Old 01-12-2011, 06:50 AM   #3
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The old saying "heat rises" is the truth but I wouldn't expect a crazy difference in temps as long as you are relatively close to cooking surface. I also like to check any new thermos I get by testing their accuracy in boiling water (No offense if you have already done this). Should read close to 212F depending on atmospheric pressure (elevation). I have been told water will boil at 162F on top of Everest. So as long as you aren't smoking above 29,000 ft you should be close.
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Old 01-12-2011, 07:19 AM   #4
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Buy a $4 oven therm at wal-fart to set on the cooking grate to check temps.

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Thanks from:--->
Old 01-12-2011, 07:48 AM   #5
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^^^ I suggest purchasing multiple $4 oven thermometers and placing them around
on your cooking grate to determine if you have hot spots, etc. I've cooked on many
different types of cookers/smokers and my experience is that the exterior mounted
thermometer is always off by as much as 50 degrees depending on placement, some
high and some low. Once you learn the difference (yours, surface temp to outside
monitored temp) then you can rely on that thermometer, but not until then.
Hance - Lake Dogs Cooking Team - MiM/MBN/GBA CBJ and comp cook
Lake Sinclair, GA (strategically about an hour from darn near anywhere)
Started competing in chili cookoffs back in the 1990's and have competed in more than I care to count. I became a CBJ in MiM in 2005, then MBN and in GBA in 2010. I've probably judged 130+- BBQ comps (sanctioned and unsanctioned) over this time. That said, I really enjoy competing more than I enjoy judging, and hope to get back to doing 4 or 5 a year in the near future.
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Old 01-12-2011, 11:20 AM   #6
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I've been interested in adding a good thermometer to my smoker around grate level, any suggestions?
Jim Bob BBQ - 18.5" WSM - 22.5" Weber Master Touch *Green* - UDS - RED Thermapen
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Old 01-12-2011, 11:44 AM   #7
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Originally Posted by inv3ctiv3 View Post
I've been interested in adding a good thermometer to my smoker around grate level, any suggestions?
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