I put the humidification devices in my humidor, and filled the humidor, and when I went to rearrange it last night there was this white powder on the wood, and the cello of the cigars. Not on the cigar itself, just the cello. But it was only on the cigars next to the humidifiers. i am assuming its from the over humidification in that area, but what is the substance? And how can I clean it so I can get my smokes back in?