Hey guys, first post. I want to make a food storage bag, so that I can carry stuff like mashed potatoes and pasta in bulk instead of a duzillion ziplocks. But then somebody told me that PU-coated fabrics should not be in direct contact with food because of some not all to healthy chemicals. Does anybody know if this is correct? Or has anybody used PU-coated fabrics (like the STS drysacks) for storing food?