You don’t really have to guess. Here is what I looked at up close…
My wife is now making homemade sourdough bread from starter. So just about every other picture above is of that… except for the one of some store-bought whole wheat bread… and the two shades of little dog bones… and a dog training nibble treat… and a cat treat… and I didn’t take notes, so I am not sure which are which either. HA!