I recently built a rack out of Pine, The shelves were originally going to be Melamine but I ended up going with Precut Kiln Dried Pine Panels.. Someone said Kiln Dried bedding was ok, but I see alot of mixed feelings about it. So I'm curious if shelving made from it could also be dangerous. The 41qt tubs do not have lids so they will be coming into contact with the bottom of each kiln dried pine shelf.