Do you know of a requirement in SQF that ingredient must have a food-grade liner? We had a supplier send us ingredient in a cardboard box with no inner liner. It's dried plant material (whole flower). They said it's so that the flower doesn't get moldy in a plastic bag. More than 99% of our ingredients get shipped to us in food-grade packaging.
I would think SQF would have a requirement that an inner liner must be used, but I am just not familiar enough with the standard. I can't seem to find where US FDA is requiring it either, although they would state that ingredients must be kept in a condition where they will not become contaminated or adulterated, and without a liner that goal is not achieved.
We manufacture dietary supplements in the United States following 21 CFR Parts 111, 117, and 121.