What Makes Fries So Crispy?
Fries are crispy because they are fried in hot oil at a temperature between 325°F and 375°F, which causes the potato starches to break down and create a crispy outer layer. The potato slices are typically pre-soaked in water to remove excess starch, which can cause an overly soft texture. Additionally, some restaurants may add a coating of cornstarch or flour to the potatoes before frying to enhance crispiness.