Gulp: Adventures on the Alimentary Canal

As an example, Blake mentions a Sudanese condiment made from fermented cow urine and used as a flavor enhancer “very much in the way soy sauce is used in other parts of the world.”

Some dog-food designers go too far in the other direction, tailoring the smell to be pleasing to humans* without taking the dog’s experience of it into account.

If they can come to like the smelly-foot stink of Limburger cheese or the corpsey reek of durian fruit, they can come to enjoy bacteria-soured beer.