Zappa even has a song about this very subject, from 1967.

Call any vegetable https://youtu.be/XhDXbElN1oY?si=I1GT-6SFweEeNuAO

Piling on here… One size fits all is an excellent intro album to Zappa for the uninitiated!

Not sure any food can safely be kept warm that long, they keep your rice warm and edible for quite awhile but even 12-24hrs is pushing it.

If you make a lot of rice then spring for a zojirushi neuro fuzzy. Expensive, yes, gamechanger, yes. Buy once, cry once.