Food is a reasonable target for biodegradable packaging because you don’t really expect the food to sit around for more than a year (for long-term food packaging you just wouldn’t use a biodegradable material).
Packaging products that might have a long shelf life is more problematic. If the material breaks down in saltwater then it will start breaking down if someone picks it up with sweaty or recently washed hands.
Food is not the only thing that gets packaged. The worst example that comes to my mind is the way they package microSD cards.
Food is a reasonable target for biodegradable packaging because you don’t really expect the food to sit around for more than a year (for long-term food packaging you just wouldn’t use a biodegradable material).
Packaging products that might have a long shelf life is more problematic. If the material breaks down in saltwater then it will start breaking down if someone picks it up with sweaty or recently washed hands.