If they are anything like my spent hop bags, then, no, I personally wouldn't store anything in them in.
I use mine for weeds I cannot compost for transporting to the dump.
Perhaps fill with a saved compost and use them as growbags/cut them up and tie string around and use them as pots/bags for leaves to die down in over winter/a spare compost container for all your spent veg foliage.
Endless possibilities :)
Ninny