@Cheebsy:
A manufacturer is obligated to ensure that its product poses no danger to the user under any circumstances. If a user questions the safety of a product, the burden of proof that the product is unsafe lies with the user or critic themselves! It's not possible the other way around. In this sense, your comment is an accusation without proof!
You yourself admit that you are not certain of your statement, and there probably isn't a video with a thermal imaging camera.
Now I can explain to you quite simply and banally that your assumption is completely wrong and incorrect. It doesn't require a thermal imaging camera or any other technical device for that.
The boiling point of zinc is 906°C, but the gold on the Vapman pan flakes off at 560°C, and the herbs evaporate at a temperature between 160°C and 230°C. Therefore, before the zinc would evaporate, the herbs would most certainly burn first, then the gold would flake off, then the Vapman would be destroyed, and only then would the zinc evaporate.
As you know, the pan is made of copper, and after silver, copper is the best heat conductor of all. The thermal conductivity of copper is approximately 40 (4000%!) times better than that of stainless steel. This explains why, with stainless steel vaporizers, the heating point is extremely important.
With copper, however, it doesn't matter where you heat; the heat spreads faster than you could measure it.
I know why Vapman works and tastes so good, it has a lot to do with the copper. And as I've mentioned many times, it's also impossible to inhale copper oxide because copper oxide doesn't even exist in gaseous form. To reach a toxic level, copper oxide must be ingested orally, at least 0.04 grams daily! 0.04 grams per day is a lot of copper oxide! This fear of copper and zinc is completely unfounded and based on ignorance. It's funny that people aren't afraid of the copper in things like car brake pads, which produce a fair amount of particulate matter and can be measured everywhere in the air. Again: safety was my top priority 25 years ago when I started building vaporizers, and I'm still here explaining it to customers. I probably need to build vaporizers for another 250 years for everyone to understand.
Have a nice day!
René