The problem is not with me as you insinuate. It only happens in that one humidor, I have rotated hygrometers and they are all under 70 and only that one gets mold on the humidifier. I am not knocking the company so if you did work for them by your tone they have tried to be helpful, they sent a jars of beads but yes they wont rust but if there is mold hidden in the humidor then they will get on my cigars. I did not soak the humidifiers just some drops of 50/50 as they state, gonna wait for the mold to grow back on the 4 th humidifier. Just to let you know it was not me causing it, came here for helpful advice and get a knocking from an IT person thst since did not happen to him it did not happen.