Step 4: Top it off
The top pot will carry the thermometer. I found a solid rubber stopper for the upper hole, but I wanted to put the thermometer through it. By drilling fairly slowly and carefully, I was able to put a hole through the stopper and insert the thermometer so that it will measure about 5 cm below the top of the smoking chamber. If you drill too fast, the rubber will soften and glom up and make a mess. Go slow and be pleased. The friction fit is tight enough so that the thermometer will stay where you put it. The thermometer came with a little strip metal clip intended to hold it on the side of the candy or frying pot, but I used it to snug the thermometer and stopper up to the top pot so that the top could be lifted by grabbing the thermometer. See it, inside the top pot? That works, but adding handles will be better.