I dont know if it matters, but water solubility is a factor I like in my food.
when I eat at my folks house, you might as well try and wash silicone caulking off the plates. Its good eatin, but I know that stuff's not breakin down in my system. They have their hot-water heater set negligently high, and it doesnt even come close to melting off the gravy.
As I was washing the dishes tonight, i wased pleased to see that regular old hot water effortlessly melted away everything we cooked and ate.