If it freezes solid, it will keep. If it stays liquid, any microbes in the batch would consume the available oxygen, leaving an anaerobic environment. It would be stinky and the plants may not respond in the manner you prefer, but may still benefit regardless.
Aerating for an extended period is not fiscally sound. Keeping the stuff fresh aint gonna happen.
Perhaps pouring the mix into a heap of leaves,
hay or
compost would be an option. You'd get immediate use of the juice, and end up with something the plants will talk about all season.