So I took my airlock off and put plastic wrap over the hole while I cleaned and sanitized. It looks like it was only on the outside of the bobbing thing. Plastic seems a little rough in the areas it was at, so maybe some spores hide in there.
It definitely didn't ferment up that high. Im...
So I'm into day 5 of my first brew, and today I noticed black stuff (mold?) growing on the part of the airlock that bobs up and down. Is it ok to take it off and clean, or should I just leave it? Its a plastic airlock. Looks to be the only area where the molds at.