I have been laying the shaft of my thermometer probe directly on the grate with the point between the bars on the grate to check the temp. in my smoker. On my thermoreter probe you can see on the tip where it measures heat. I have read many times that you should not put the probe on the grate because the hot metal will damage the probe. Is this because the grate is metal, or because it is hot? Why would the grate be any hotter than the temp. inside the smoker? I guess I need to test my thermometer again to see if it is still accurate and that I haven't damaged it.