Why is mine going moldy?? I was using honey on its own until I read on here of someone brewing up some green tea and mixing it 50/50. They made at least 4c at a time (I think more) so it's not like they'd go through it in a week. I have mine in an old handsoap pump bottle (I washed out a Jergens bottle) on my bathroom counter. I've noticed a few times that there has been a few dots of what I assume to be mold (white-ish) on the surface. What gives?? I'm guessing it's the tea's fault?