Brian is correct that the boxes should be re-seasoned. But not all cigar boxes are perfect for using. Not all cigar boxes are made of cedar or cedar lined. Also boxes from companies like Roma Craft or DE Ligas can have rough finished exteriors that will also adsorb moisture. one option would be using premade cedar trays. A number of sites like Amazon, Walmart. The trays are slotted and would allow for better air circulation. Another option would be to use smaller food quality plastic containers (lid off). I understand both are more expensive ways to go, but may offer more certainty