I don't believe that dehydrated stuff needs to be refridgerated. I've never dehydrated before, but when my grandfather used to make jerky it was never stored in the fridge. Since the water is removed, it should be able to be left out, since there's no moisture to make it go bad.
I'm not sure about the cornmeal, though. Maybe you could make a batch without it and see how it does? it might turn into more of a brownie consistency instead of bread.
I'm not sure about the cornmeal, though. Maybe you could make a batch without it and see how it does? it might turn into more of a brownie consistency instead of bread.