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.
No it isn’t. Especially Caro Kaffee is a quite well known brand you can buy in every random supermarket.
I guess many GenZ kids wouldn’t know it, but everyone who had a grandparent that lived through the food sparse years after the war would.