I remember someone telling me about all the things they recycle and I try too but hubby manages too get most things and throw them away but back too the subject of the dog food bags. I am sure that someone told me that they take a bathrag(white) and wring all the water out it(it has a little bleach in it) and wipes all of the inside and then takes something like baby wipes and tries too get most of the bleach smell out and then sprays Febreeze inside the bad and leaves it sitting open till it dries. I have never tried this as I don't have a dog or cat. My chicken feed bags is all I have and I can't stand the smell of the feed just riding in the car home but never smelt of the inside of the bag. Some bags have two layers don't they so maybe one would work.