Why do slice potatoes have to be boiled before fried?

Sliced potatoes do not have to be boiled before fried. They can be fried directly. Frying sliced potatoes directly can result in a crispy outer layer and a soft inner layer, which is a popular way of cooking potatoes. However, boiling potatoes before frying can have several benefits:

1. Reduced Frying Time: Pre-boiling the potatoes partially cooks them, which means they will require less time in the fryer. This can help reduce the overall cooking time and save energy.

2. Even Cooking: Boiling potatoes before frying helps ensure that the potatoes cook evenly throughout. Without pre-boiling, thicker slices may remain undercooked while the thinner ones become overcooked.

3. Crispy Texture: Pre-boiling helps remove excess starch from the potatoes' surface, resulting in a crispier texture when fried. The hot oil can better penetrate the potato slices, creating a satisfying crunch.

4. Reduced Oil Absorption: Boiling removes some of the starch from the potatoes, which reduces the amount of oil they absorb during frying. This can result in a healthier and less greasy finished product.

5. Improved Flavor: Boiling can help enhance the flavor of the potatoes by allowing them to absorb seasonings or flavors added to the boiling water. This can add an extra layer of taste to the final dish.

It's worth noting that boiling potatoes before frying is not always necessary and may not be preferred in certain recipes or cooking methods. However, it can provide several benefits and is often used to achieve specific textures and flavors.