Shaving a potato minimizes waste by removing only the skin, preserving more of the potato. It also results in a smoother potato surface, which can improve the texture of the cooked potato.
Peeling a potato by shaving, typically using a vegetable peeler, offers several advantages over digging in with a knife. When you dig in with a knife, you tend to remove a thicker layer of the potato along with the skin. This leads to unnecessary waste of the potato flesh. Shaving, on the other hand, removes only the thin outer layer of skin, preserving more of the usable potato.
Furthermore, shaving often results in a smoother potato surface. A smoother surface can lead to more even cooking and a better texture, especially when roasting or frying. When you dig in with a knife, you can create uneven surfaces that cook at different rates, potentially leading to some parts being overcooked while others are undercooked.
Finally, shaving is generally safer and more efficient. Using a vegetable peeler is less likely to result in accidental cuts compared to using a knife, especially when peeling a large quantity of potatoes. It's also typically faster once you get the hang of it.
To make shaving even easier, choose potatoes that are relatively smooth and free of deep eyes. This will minimize the amount of effort required to remove the skin and reduce the risk of accidentally removing too much of the potato.