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I began a smoke tonight and as the Temp gage passed through about 190, everything looked fine. Smoke streamed out the vent and there was a little door leakage. ALL OF A SUDDEN, it was like the smoker burped (analogous to a flash fire).  Heavy smoke shot out through the door cracks and jetted through the top vent in a 1 second burst. Gages and smoker showed normal but I have never seen nor heard of this. The vent was free of obstruction.

Before putting in my boneless pork butts, I did tie them up in cotton string and for the first time, I used a spray of Kirkland canola oil cooking spray on the grates for easy cleaning. That is the only thing that was different from previous smokes.

Any idea what may have happened? 

 

 

Last edited by ouinabq
Original Post

Cookshack says that there are several variables, in my case most probably too much wood smoke at the onset of the cook. At some point, it goes pressure critical, releasing through door and vent, then creates a momentary vacuum before going back to normal. Tech OPS says it's not really an issue, but he heard of incidents on larger commercial models where the "burp" is so powerful that the smoker doors are damaged.

Having never experienced this before, it definitely caught my attention at a distance of 5 feet. I'm glad I wasn't drinking or I might have wondered if this event happened at all.

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