I use the UC on 15 8 minute cycles (2 hours). Nicotine begins to break down at 150 degrees (from what I've read in the forum) so I am cautious about keeping the heat cycle on
throughout. You can use a kitchen thermometer to check. I use hot tap water to start, then a few with heat and a few without. After that I let my
juice steep/cool opened overnight. This will help let any alcohol based flavors evap the alcohol, and lose any perfumey smell.