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Temperature gradient when cold smoking

post #1 of 9
Thread Starter 

The current batch of bacon has been in the smoker again today however this time I used my data logger to compare the temperature in the smoking chamber with the outside temperature. I was using my large barrel smoker with an AMNPS type smoke generator.



Smoke generator lit and in firebox. Hickory pellets.



Internal temperature logger probe clipped just behind the bacon.The external probe was clipped to the leg of the smoker.



Notice that for most of the day the internal temperature was tracking 2 C (3.6 F) above the outside temperature however at 17:00 I moved the internal probe and clipped it to one of the wire hangers at the top of the bacon as I put 8 Kg of cheese in the other side of the smoker. The temperature difference then increased and it started to track the outside temperature 5 C (9 F) higher.  



Firstly this shows that even in a fairly large smoker the heat produced by the smoke generator is significant. Secondly it shows that even within the 10" or so height difference within the smoking grill and the top of the meat there is a measurable temperature gradient.


To verify this gradient I will place both probes in the smoker tomorrow when the bacon goes back in for its last day.


OK so what? ...


... At the temperatures today this was more of just an interesting exercise, however when smoking on warmer summers days this gradient is likely to be amplified and could have a real impact depending on where the food is placed in the smoker. When smoking something like butter that 5 degrees could be the difference between lifting it out and mopping it out and for cheese the difference between it sweating in the smoker or not. For cold smoking salmon over an extended period it could also impact food safety.


Its OK you can all go back to sleep now huh.gif 

post #2 of 9

Hello wade,


Interesting exercise.


 Since you mentioned swaeting cheese I have the same issues with sausages. Perhaps you could add a thought or towo my question here please?:

post #3 of 9

Hello Wade,


Interesting exercise.
Since you mention sweating cheese, this is the problem I face with sausages. Perhaps you could add a thought or two to my question here please?:



post #4 of 9
Thread Starter 

I have responded in your original post Thumbs Up

post #5 of 9

Appreciate it.

post #6 of 9

YAWN! interesting. On a sunny day the sun on a black smoker or stainless can make a lot of difference. I'm going back to sleep now.

Happy smoken.


post #7 of 9
Thread Starter 

Yes as I found out to my cost in the New Braunfels when I first started to cold smoke in it! 

post #8 of 9
Great post Wade, have you tried adding ice to regulate the smoke temperature from the amazin?
post #9 of 9

ice paks worked great for me in a Bradley but humidity is an issue.

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