The best oil for popcorn is a high-heat cooking oil with a neutral flavor. Vegetable, canola, and peanut oils are all great options. Each of these oils has a high smoke point, meaning they won't start to break down and produce an unpleasant flavor at the temperatures required for popping corn. When selecting an oil for popcorn, it's important to consider both the flavor and the smoke point. If you want to add some extra flavor to your popcorn, you might opt for something like coconut or avocado oil which have lower smoke points but impart a delicious taste. However, if you're looking for a neutral flavor that won't overpower your popcorn, stick with vegetable, canola, or peanut oil