Originally Posted by SkyHighLer
On what authority do you deem a griddle to be safe around exposed butane? Have you taken it completely apart and looked for exposed thermostat switching contacts? Did you look for over heat and/or over current components that might blow like a fuse, maybe with a heat hot enough to ignite butane?
"Common practice" at YouTube does not equal common sense...
If you think it's unsafe then simply don't do it that way. What can I say other than you're nitpicking VERY specific details. If any of the information available has taught anyone anything it's that safety comes first. If you feel you may ignite butane then use the extractor away from the heat source with a pyrex lower dish containing heated water and then use the griddle once purging safety has removed the majority of the butane.
Common sense is maintaining proper ventilation when using a volatile substance period. not to mention adding heat into the equation. I've been making concentrates since before YouTube existed and I've enjoyed seeing different people's techniques if ever a good video was made on there. YouTube is great because it allows people to get themselves visually acquainted with the process, not a bad resource if you ask me. As always I say just experiment and find your own method that you find works and maintains a safe environment.