What an interesting post!
I got used to seeing corn coffee being sold at Gaisano Mall, but I never heard about rice coffee though.
It can wreck your pan
Of that, I have no doubt.
It is smoky, so it's best to open the windows.
Sounds like solid advice 👍
I'm not sure if I'd try this, but I would enjoy watching Filipinos drink it and act 'boang' early in the morning 😆