When I was cleaning cartos I'd boil then 15 mins. I found the better way was to spend $2.00 on an Oral Med Syringe from Walmart. The cone that comes with it fits perfectly over the carto. I would then suck in hot water with the syringe and expell it. After about 20 times I would use the syringe to force air thru the carto- about 40 times and carto would be ready for immediate use. To clean the carto coil I'd use a hairpin VERY carefully- was amazing amount of gunk that came out. The syringe has 10 ml markings and can also be used for DIY juice but the numbers must be nail polish clear coated. The syringe cleaning method there's a YouTube vid but on my IPhone. Will post it on Tues. when back in city on pc.
Funny. I was completely unaware of bogegate as a social/business/manufacturing/international phenomenon. I've not gotten the burn-taste unless I use a blank carto with no liquid in it (yes, genius). I can tell you that at least twice I've gotten threads that were crooked enough that the thing didn't fit into the battery.
Vodka .... certainly an edible solvent. Now I'm going to have to see what other weird edible solvents might be around .... Vinegar, anyone?