Cooking Oils

So Many Oils, So Little Time

Not all oils are created equal. In fact, no one oil can be used for all things; instead, each has its distinct place in the kitchen. Keep these basic categories in mind when you're cooking:

For baking: Coconut, palm, canola and high oleic safflower and sunflower oil work best.

For frying: Because they stand up well to the heat, avocado, peanut, palm and sesame oil are ideal for frying.

For sautéing: Many oils are great for sautéing, including avocado, canola, coconut, grapeseed, olive, sesame and high oleic safflower and sunflower oils.

For dipping, dressings and marinades: When it comes to making dressings and marinades, or finding oil that's perfect to serve alongside crusty bread for dipping, you're looking for terrific flavor. For this purpose look to flax, olive, peanut, toasted sesame or walnut oil.

Oil 101

We know there are a lot of oils on our shelves! Here are a handful of our favorites, along with quick details on how they're made and the best ways to serve them:

Avocado Oil: Pressed from avocadoes, this smooth, nutty oil is more than 50% monounsaturated, making it a heart-nourishing choice. Use it in salad dressings or to sauté fish, chicken, sweet potatoes or plantains.

Canola Oil: Canola is actually a cousin to cabbage and Brussels sprouts. In fact, it's a variety of rapeseed that's part of the mustard family, which includes those above-mentioned veggies. It's beneficial for heart health thanks to its fatty acid profile and omega-3 and low saturated fat contents and perfect for light cooking, sauces and desserts like homemade mayo or tender cakes.

Coconut Oil: Pressed from the fruit of the coconut palm tree, coconut oil is ideal for light fair and subtly flavored dishes. This oil is particularly mouth-watering to use for making popcorn and hash browns.

Corn Oil: Most corn oil is extracted only from the germ of the corn kernel and is golden yellow in color; unrefined oil will have a darker color and richer corn taste. Use in salad dressings and dips with stronger flavors like peppers or garlic.

Grapeseed Oil: Grapeseed oil is extracted from the seeds of grapes, a byproduct of the wine-making industry. Use it on salads and raw veggies or in dips, sauces and salsas. Mix grapeseed oil with garlic and basil, then drizzle it on toasted bread.

Olive Oil: A mainstay of the Mediterranean diet and one of the oldest known culinary oils, olive oil contains predominately heart-friendly monounsaturated fat. Extra virgin olive oil results from the first cold-pressing of olives while mild "pure" olive oil is a blend of refined olive oil and extra virgin olive oil. Drizzle over hummus or grilled vegetables.

Peanut Oil: Peanut oil comes from where you'd expect…peanuts! It's relatively high monounsaturated content makes it heart-healthy. Peanut oil is superior for frying, light sautéing and stir-fries.

Sesame Oil: The seed of the sesame plant provides sesame oil, which has a high antioxidant content. Unrefined sesame oil is great as a key flavor component in sauces or dressings. Use refined sesame oil for high heat applications like frying and toasted sesame oil for stir fries and Asian sauces and dips. (Still need a little convincing? 

How To: Storing and Heating Oil

Where should I store oil in my kitchen? Unfortunately, oils aren't like wine; they don't improve with age. Heat and light can damage oils, particularly polyunsaturated ones, so keep them in the refrigerator to avoid rancidity. For the record, you'll know your oil is rancid if it takes on a characteristic bad taste and smell, in which case you should toss it and buy fresh oil.

Why does my olive oil get cloudy when it's cold? Some oils, olive oil among them, become cloudy or solidified when refrigerated. Not to worry; it doesn't affect their quality at all. A few minutes at room temperature and things will be back to normal.

I hear people refer to a "smoke point" when they talk about cooking with oil. What's that? Heating oils beyond their smoke point — the temperature at which the oil begins to smoke, generating toxic fumes and harmful free radicals — is never a good idea. Always discard oil that's reached its smoke point, along with any food with which it had contact. Unsure of an oil's smoke point? Most labels on bottles of oil will give you the correct temperature.