title_body: Where to measure ET on drum roaster
upvoted_answer: I'm not very familiar with the Kaldi roaster. From what little I've read, most buyers are pretty happy with it. I built a home roaster about a year ago using equipment from RK Drums, which requires a dedicated gas grill. I'm really happy with the results I get from this setup. I noticed the Kaldi also requires the purchase of a gas burner but what size and form is it? I use a single thermocouple that mounts very close (~1/2") to the drum. I'm not sure how you plan to drop one right in the bean mass while the drum is rotating. Again I'm not very familiar with the Kaldi so maybe you've worked this out. Using forced air might help if you think the beans aren't getting even temp distribution. I don't use forced air. The thermal mass of the grill cavity along with the bean rotation seems to distribute the temperate quite evenly. Wherever you place the probe, as long as you can get a consistent and reliable reading you should be able to build your roast profiles accordingly. Good luck and I look forward to your updates with the results!