My Pro 850 and the Smoke Daddy Heat Diffuser

JayPH

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The Smoke Daddy heat diffuser does very little, if anything, to even out the temperatures across the grates.

Am I doing something wrong?

Or is it possible that the wireless probes aren't reading the temperatures properly?
 
The Smoke Daddy heat diffuser does very little, if anything, to even out the temperatures across the grates.

Am I doing something wrong?

Or is it possible that the wireless probes aren't reading the temperatures properly?
Possibly reading wrong. As long as the diffuser has it covered it should be ok
 
I'll check the wireless thermometer's accuracy by sticking the probes in a glass filled with crushed ice and water

why check the freezing point?

Maybe test closer to the temp you care about using hot water and other thermometers.
 
why check the freezing point?

Maybe test closer to the temp you care about using hot water and other thermometers.


Water boils at different temperatures, depending on how far above sea level you live.

Doing it this way is much more accurate.
 
Water boils at different temperatures, depending on how far above sea level you live.

Doing it this way is much more accurate.

Accuracy at the temp I'm cooking at is more important to me. I don't cook my food at freezing so accuracy at that temp is not important to me.

I suggested hot water and other thermometers not boiling water. I've used my sous vide and my thermapen as my baseline and I test accuracy at:

120F - my alarm point for rare beef
160F - a range I use for poultry and pork
195F - alarm temp I use for pulled pork

Boiling water is an easy way to test the high end, and here's a chart for temp at altitude.


1646328386388.png
 
Accuracy at the temp I'm cooking at is more important to me. I don't cook my food at freezing so accuracy at that temp is not important to me.

I suggested hot water and other thermometers not boiling water. I've used my sous vide and my thermapen as my baseline and I test accuracy at:

120F - my alarm point for rare beef
160F - a range I use for poultry and pork
195F - alarm temp I use for pulled pork

Boiling water is an easy way to test the high end, and here's a chart for temp at altitude.


View attachment 2385
Thanks. I'll run the test with boiling water to see what happens but I got around to installing the new controller and RTD probe and so far it hasn't made a difference.

The smoker temp is set to 220 and the center temperature on the grate is pushing 300 and the left is 240 something and the right is 214.

WTF
 
Thanks. I'll run the test with boiling water to see what happens but I got around to installing the new controller and RTD probe and so far it hasn't made a difference.

The smoker temp is set to 220 and the center temperature on the grate is pushing 300 and the left is 240 something and the right is 214.

WTF
I cook on raised grates and put a thick aluminum griddle on the main grate under the food. This is for an 820 pro and it evens out the hot spot in the middle. My temps still vary 20 Degrees F left to right with the left hotter than the right.

edit: the digital temp on my controller does not agree with my thermoworks ambient probes. The dial thermometer on the lid is very close to the thermoworks probes.

edit2: the grates are from my weber genesis silver B. They fit nicely front to back at this height. I lift them using flavorizer bars from the same.

20210725_180526.jpg
 
Last edited:
I cook on raised grates and put a thick aluminum griddle on the main grate under the food. This is for an 820 pro and it evens out the hot spot in the middle. My temps still vary 20 Degrees F left to right with the left hotter than the right.

edit: the digital temp on my controller does not agree with my thermoworks ambient probes. The dial thermometer on the lid is very close to the thermoworks probes.

edit2: the grates are from my weber genesis silver B. They fit nicely front to back at this height. I lift them using flavorizer bars from the same.

View attachment 2386
How thick is this aluminum griddle? I was thinking a piece of stainless steel over the diffuseright help.

Thank you
 
How thick is this aluminum griddle? I was thinking a piece of stainless steel over the diffuseright help.

Thank you
it is fairly thick. The product description indicates 20.5 x 11 x 1.25 inches, but it's really closer to 3/8 inches thick in the center..

I bought it in 2009, and it became an outdoor griddle a few years ago. It was non-stick when it was an indoor grill but the non-stick burned off years ago and now its just carbonized aluminum.

 

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