Can you put these in an ultrasonic cleaner or would it mess them up?
Haven't put 'em through my ultrasonic primarily because they're still going strong. But ... with my Go-tanks I just rinsed with really hot water and that seemed to do the trick. Perhaps with non-tobacco flavored juices that gunk up the coil faster a run through the ultra sonic might be beneficial. I'll let y'all know when I'm forced to clean these up.