Yeah everyone on that radio show is either a "professional" bho maker or works in a professional ass lab and is basically as skilled. The one guy who found the can in the trash is from the pink room i think or pink lab, other guy is the owner of top shelf extracts and the other 2 guys probably work with them or make bho enough to know what theyre talking about.
The guy who got it to try out said there was 50ppm of some hydrocarbon left after he purged it and everything.
Im good with butane for now. They also talk about something called american butane or something that has ~95% N-butane and another 5% iso butane which is probably the shit especially for anyone running a small closed loop system.
Just ordered me some power 5 from ebay for 3 or 4 dollars a can. Just about the cheapest shit out there that is any good imo.
Ive heard the burnz o matic is good its just isobutane and N butane, about 2/3 iso 1/3 N so im not sure how much better N is than iso but ive heard burnz is a good moderately priced butane thats fairly pure.
Like they said too, no one is going to be extracting with that stuff in a bedroom or a room without ventelation because it will just replace all the o2 in the room and choke you to death. So youll still want a well vented room, youll just be able to use fans and shit that arent explosion proof like a hood thats in labs.