I recommend both cleaning and removing the few strands of wicking material. Just search for 'how to remove your wick' on utube. To clean, I use a few drops of H2O2, then a few drops of VG or some juice, blowing it out each time, then do three or four short dry burns. Hopefully, the H2O2 will get rid of any factory contaminates. H2O2 converts to water under heat. I just use a few drops so it's easy to do.