I don't think there's a neat categorisation. If I cook at home, starting with just vegetables and cuts of meat, at some point the food I'm making stops being "w

I don't think there's a neat categorisation. If I cook at home, starting with just vegetables and cuts of meat, at some point the food I'm making stops being "whole foods" and starts being "processed foods". But when is that? If I cook bread at home, is that a processed food? How about if I make a steak sandwich with that bread? How about if I first pass the steak through a mincing machine? Still whole? Or processed now? What if I add an egg, some crumbs from the bread I made earlier, and some salt and pepper. Still whole? And then I formed it into a patty and cooked it on a pan. Is it now processed? When does it become processed and how does that look different to my stomach when I chew it?