Altadude...

It wasn't particularly thick... it was a bag of Jasmine rice from Costco, which came in a burlap bag. The zipper was open (i.e. easy access) and yet the inner bag was undisturbed... unlike virtually everything else in the pantry. It has been a few years, but I seem to recall that they ate through some very surprising packages, and the bag of brown rice that was in plastic, but it was as if they gave the burlap wide berth. I think it is an odor issue for them.

MNS
_________________________
YMMV. Viewer discretion is advised.