Why doesn’t this exist?
Take dried beans, roast 'em, grind 'em, and brew some bean juice?
I have no idea if it would taste good or not, but we don’t know if we don’t try.
Edit: I need to see what dried beans I have and maybe go shopping. I will give this a try with a couple different types of beans and report back if I fart or not.
Probably because of how much taste coffee can be extracted via brewing vs black bean. Probably gonna takes some time to extract the taste of black bean, by then it’s might as well be soup.
Also due to the taste and smell.