I've smoked several pork shoulder's on the egg.. ALWAYS phenomenal. My challenge is that I see big temperature swings at night even after the egg is stable with the pork shoulder in it. For example, last night I had the egg stable at 245. I went to bed and my alarm went off because it dropped below 220. I went outside and adjusted the daisy wheel a notch.. egg stabilized. Then an hour later my alarm went off because the egg went past 275.
I've seen this consistently every time I do a long cook. I can't figure it out. I find it unlikely to be the charcoal.. but I suppose it is a possibility. Is it possible that i need to give a slightly bigger air vent gap in the bottom vent and control more tightly via daisy wheel? I've played with it a bit but it hasn't made a difference. I understand that has charcoal burns down adjustments are needed.. but i should see such huge swings
I should add that on long cooks, I completely clean out the egg and start with fresh charcoal.
Any help would be appreciated!