Used my cold smoker attachment for first time today smoking to 4# pork butts.
Cold smoker initially produced a lot of smoke, but then smoke seemed to die down.
I started to think it was because the ash was not falling through the metal mesh screen and preventing chips above the ash layer from heating up sufficiently. I say this because after several hours, very little ash in the ash catcher beneath the screen.
I tried poking a long screw driver down inside the chip holder and stirring up the chips. This resulted in good smoke for about 30 minutes or so, then smoke subsided.
I will know for sure once I am finished and everything cools down so I can look at the screen.
I don't think it would be because I have the MES heating at 225F, as that heated air would be traveling up through the vent at the top of the smoker which would also draw the smoke from the cold smoker???
MES works great using existing chip tube, but only when cooking at 210F or higher which seems sufficient to keep chips smoldering between when the heating element is turning itself on and off to maintain desired temp.