Conduction is just a different word for direct contact.
Conduction is just a fancy word for direct contact. It's possible to produce vapor with herbs if the herbs are placed on top of a surface that heats up to the right temperature for vaporization. As mentioned above, glass screen filters can help many common vape pens produce vapor by preventing the herbs from touching the excessively hot heating coils. Instead, the glass screen heats up to the right temperature, which in turn heats up the herbs and causes them to release vapor. It can take anywhere from 5 to 25 seconds for the glass screens to get hot enough (depending on how many glass screens you use and how hot your coil gets), and the results aren't perfect, but it's definitely the way to go if you're trying to get vapor instead of smoke.
You simply load your herb into the chamber, let it heat up and start inhaling the vapor.
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