First BBQ - Some odd temp readings, please help


 

euge.lee

TVWBB Member
So I did my first smoke in my 18" WSM... I did the BRITU ribs and they turned out very good. That said, I had some odd temp issues and would love your thoughts.

My temps were too low according to the built-in thermometer in the lid. It was reading 190 - 215 pretty much the whole time. I thought the thermometer may be off, so at the 3 hour point when you turn the ribs, I removed it and did the boiling water test... and it read 211 in boiling water, so dead on.

I also put a meat thermometer (Taylor brand) that really only has readings to 200, but you can guesstimate temps when the needle goes past 200. Through the lid via cork, that was reading 30 degrees higher than the lid thermometer. It too calibrated in boiling water properly.

My ribs were well cooked after 4.5 hours and actually tasted very good, especially for my first BBQ.

Note: The reason for the low temps (I believe) was my improper setup of the initial fire in the smoker in the beginning. To get the final 260+ readings for the final 1.5 hours, I had to wedge open the side door. In setting up my fire, I didn't wait for the 2nd chimney of unlit coals to light properly before assembling the cooker.

Question is... Should I trust the lid thermometer? I don't think Costco sized ribs would be done after 4.5 hours if the first 3 hours was done ~200 degrees. But the fact is that the thermometer does calibrate properly.
 
There is a difference between temps measured at the grate and the teps measured at the lid, so nothing to worry about. Most people will measure temps at grate level (where the food is cooking), but you'll find the more you get used to your unit, the less you will rely on temp gauges.
 
Sorry, to be clear, the meat thermometer was inserted through the vents,so both were technically measuring "at the lid". And even so, the built-in lid thermometer is 2" and the meat thermometer was 5" so shouldn't the shorter thermometer have read higher?

Weber built-in lid thermometer = 200F
Meat thermometer inserted through vent = 245F
 
At the temps you cite, 4.5 hours is not long. Were the ribs pulling apart easily? Could you pierce the meat without effort? These factors are often more important than time and temp.
 
Yeah, I know 4.5 hours isn't long... in fact it's too short considering the lid was barely reading 200F most of the time. The food was fine, I'm just trying to figure out if I can trust my lid thermometer or not, even though I did validate that it reads 211F in boiling water.
 

 

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