When food burns in the bottom of a pot, what happens to it that it become so impossible to remove?

Question

When food burns in the bottom of a pot, what happens to it that it become so impossible to remove?

In: Physics

Answer 1

When the heat is high enough for a prolonged period, there’s enough energy to cause the protein, fat, and sugar molecules in the food to react together, forming large chains (polymers). These large chain molecules are not soluble in water, so they stick together and form this sort of dried tar that’s very difficult to remove.