Aye, the sticky icky..... As usual you're homing right in on the motherlode of niggly-ness....... Personally I consider any transfer of sticky icky to the drying infrastructure a refundable tax to the paper pushing canna deities, once the cardboard box reaches a certain vintage, simply cut it up in suitable bits and pieces, add combustion...... Lol
Next you'll be smoking your old grow tent...............