Question

Why boiling point increases fastens the cooking food?

Answer 1

On the basis of boiling, there are two factors that affect the the boiling point of a substance. One is the presence of impurity and other is the atmospheric pressure. At higher altitudes, say like mountains, cooking food is difficult. Higher altitudes means lower atmospheric pressure and thus lower boiling point. But that doesn't mean that food can be cooked at lower temperatures easily. Food we eat is adapted to the recipes which require a standard boiling point near the earth so they become tender, soft, or easy to chew on. So, at higher altitude, food needs to be cooked for a longer time due to the lower in boiling point of water. But note that at a certain point, cooking should be stopped or the food may get overcooked.