To blanch is a cooking process where foods like fruits and vegetables are plunged into To boil is to cook food in hot bubbling water or other liquid such as stock, milk, wine or others to soften the food and alter its texture and flavor. Boiling protects food from burning as the liquid prevents the temperatures from rising beyond the liquids boiling point. Cooking food in a liquid such as oil is not considered boiling... More water for short periods of time and cooled in water. This process helps preserve foods and allows for faster cooking, later finishing and to remove unpleasant flavors.
French fries are blanched in Oil which is also called Cooking oil or Edible oil is a plant, animal or synthetic fat used in food preparation. It is used in frying, baking and other forms of cooking as well as where the food preparation does not require heat such as in salad and dip. It is usually in liquid form at room temperature. Some varieties... More at a lower temperature to cook the potato to be later finished at a higher temperature to crisp the potato.