While heating is the addition of he

While heating is the addition of heat energy to foods, cooling is the removal ofheat energy. This may be done to the degree where food is chilled to refrigeratortemperature, or beyond this range to where the food is frozen. Primarily, we refrigerateand freeze foods to prolong their keeping quality. But there are some foods that owe theirentire character to the frozen state. A prime example is ice cream.