Peanut oil is a type of vegetable oil made from peanuts. It's popular in cooking for its mild flavor and high smoke point, making it ideal for frying and sautéing. Here are some key points about peanut oil:

1. Types: There are different types of peanut oil, including refined, unrefined, and cold-pressed. Refined peanut oil has a higher smoke point and a neutral flavor, while unrefined and cold-pressed versions retain more of the peanut flavor and nutrients.

2. Smoke Point: Refined peanut oil has a high smoke point of around 450°F (232°C), which means it can withstand high cooking temperatures without breaking down.

3. Nutritional Profile: Peanut oil is rich in monounsaturated fats, which are considered heart-healthy. It also contains some polyunsaturated fats and a small amount of saturated fats.

4. Flavor: It has a mild, slightly nutty flavor, but refined versions are generally neutral.

5. Uses: Besides frying, peanut oil is also used in salad dressings, marinades, and Asian cuisine.

6. Allergies: People with peanut allergies should avoid peanut oil, especially if it's unrefined, as it may still contain proteins that could trigger an allergic reaction.