If you're that bothered by it you can put a couple cotton balls in a microwave save (glass hopefully) bowl with some distilled water and put it in the microwave for a couple minutes moving the cotton around occasionally. Dry it off with paper towels or by squeezing the water out and leaving it somewhere that it can air dry..
And fluff the cotton out before you roll it up and pull it through the coil. spread it out so it's nice and loose and you can make sure the fibers are facing the same direction then gently roll it up so it will fit snugly but slide easily when dry. That way when it's wet it will have plenty of surface to wick with and fit the coil pretty evenly.
9 times out of ten tasting your cotton is due to wicking problems, at least after the initial period.. fire the mod a bit and blow on the coil to help the wicking process start and if need be let it sit for a while before you start vaping off of it.