A chat last week with Russell French, food photographer (photo at right) and man who wouldn't know a cryptozoo from a bowl of glue:
Yesterday, I photographed some cereal. We used Elmer's Glue for milk, and because we're not selling milk, it's OK to do that. If you use milk, milk kind of looks thin and blue. It doesn't photograph well. That's a good example of about as far as we push it, via PPH.