Is it bad to clean tanks with alcohol? Usually I will soak my tanks (evods, aerotank, iclear) in a cup of alcohol for a while, then let it soak in a cup of water, then dry it out and add a different fluid. It seems like some of my newer tanks that I haven't cleaned yet vape a lot better though. They seem to produce much denser clouds and have more potent flavor. Maybe I'm not drying the wick properly? Or is it just a good idea in general to not use alcohol?