So I'm about to decant into a brand new after market bottle I got off of ebay, do I need to clean out the inside first or is it good to go? If I do indeed need to clean it out, how do I do that? I was thinking about putting some rubbing alcohol in the bottle and shaking it up pretty good then rinsing it with water, then letting it air dry, but I don't know; maybe I don't even need to clean it out. Thoughts?