
Hey folks,
Here was a cook from a few days ago. Was running a test to see how consistent I could get my BJ2 running without adjusting vents. Plugged in my ambient probe as soon as I felt like I had the temp dialled in, about 60 min after lighting.
Temperature was very consistent until the first dip when I put two racks of BB ribs on. After that it took a long time to recover back to ~250f. I didn’t adjust the vents at all. Also the probe was over the deflector but away from the meat by at least a few inches. Dome temp was also slow to come back to 250.
I wrapped at the temp second dip and adjusted vents to get 275 for the rest of the cook.
Any insights on why the temp took so long to recover? Ribs still turned out great but took longer than expected.
by hoselrocketsallday

3 Comments
Not the most scientific answer, but stuff like this will happen at low temps. The ribs will have a meaningful impact on the ambient air and any opening of the dome will be significant and need recovery time.
Highschool thermodynamics? You add cooler things. It will suck the heat out of the surroundings + you are opening and closing the lid. You can try and just open and close the lid and see how significant or insignificant it is to the temp change
Edit: if you want it to recover fast, increase the vents just before opening and closing.
That’s happened to me a couple times. First time I did not have as much fuel as I thought. Second time I noticed the holes in the fire box were plugged. Both times I found out the next day when I went to clean it out.