If something is fit/okay for consumption, we use these words. While I find edible most commonly on the labels of anything eatable/edible, this raises the doubt whether eatable is understood by all.
My homework: I went through some forums. I liked an example of a fish. Fish is edible but I don't like fish so it's not eatable for me. This means anything that is fit to consume is edible but anything not eatable is a personal choice.
The doubt further perplexes me as I find this (note my examples in the brackets) -