I wonder how/when your open mesh floors will come in contact with either acid or acidic fumes?
Surely the only use for acetic acid is for fumigation ! . The boxes should be stacked in a bin liner , a flat dish of acid placed on top of frames of top box, then the bag sealed , as the fumes are heavier than air, the fumes will precipitate down through the boxes .
After a period of time, the boxes need ventilating before being put to use !
There is no need for the open mesh floors to be used during this operation !
John Wilkison