If they’re still working, they don’t need your support. Focus on staying in touch with them, and let them know that if they do need you, you’re here.
Like someone else said, instead putting money into savings, so that a future need can come out of that instead of your current funds, that’ll mitigate the future need.
It just needs to have the water and air removed, really, which is accomplished the same way as jerky, remove a bunch of it, then stick in a silicate packet, those ones that say not to eat them.