Understanding Cooking Oils: Which to Use When
Navigate the confusing world of cooking oils with this guide to smoke points, flavors, and best uses.
Not All Oils Are Created Equal
The cooking oil aisle can be overwhelming. Different oils have different smoke points, flavors, and best uses. Here's what you need to know to choose wisely.
What is Smoke Point?
The smoke point is the temperature at which an oil starts to break down and smoke. Cooking above an oil's smoke point creates off-flavors and potentially harmful compounds.
- High smoke point (400°F+): Frying, searing, roasting
- Medium smoke point (350-400°F): Sautéing, baking
- Low smoke point (below 350°F): Dressings, finishing
Common Cooking Oils
Extra Virgin Olive Oil
Smoke point: 325-375°F
Flavor: Fruity, peppery, robust
Best for: Dressings, dipping, finishing, low-heat cooking
Note: The "extra virgin" designation means it's unrefined and has the most flavor
Regular/Light Olive Oil
Smoke point: 465°F
Flavor: Neutral
Best for: Sautéing, roasting, frying
Note: "Light" refers to flavor, not calories
Avocado Oil
Smoke point: 520°F
Flavor: Mild, slightly grassy
Best for: High-heat cooking, frying, grilling
Note: One of the highest smoke points, very versatile
Vegetable/Canola Oil
Smoke point: 400-450°F
Flavor: Neutral
Best for: Frying, baking, all-purpose cooking
Note: Affordable and widely available
Coconut Oil
Smoke point: 350°F (unrefined), 400°F (refined)
Flavor: Coconut (unrefined) or neutral (refined)
Best for: Baking, medium-heat sautéing, vegan cooking
Note: Solid at room temperature
Sesame Oil
Smoke point: 350-410°F
Flavor: Strong, nutty (toasted) or mild (light)
Best for: Asian dishes, finishing, dressings
Note: Toasted sesame oil is for flavoring, not cooking
Peanut Oil
Smoke point: 450°F
Flavor: Slightly nutty
Best for: Deep frying, stir-frying, Asian cuisine
Note: Classic for fried foods
What to Keep on Hand
A well-stocked kitchen needs just 2-3 oils:
- Everyday cooking: Avocado oil or regular olive oil
- Finishing and dressings: Extra virgin olive oil
- Asian cooking: Toasted sesame oil (small bottle)
Storage Tips
- Store oils in a cool, dark place
- Check expiration dates—oils do go rancid
- Buy sizes you'll use within a few months
- Some oils (like flaxseed) need refrigeration
Quick Reference
- Frying: Avocado, peanut, vegetable
- Sautéing: Olive, avocado, vegetable
- Dressings: Extra virgin olive, walnut, sesame
- Baking: Vegetable, coconut, olive
Don't overthink it—having a neutral high-heat oil and a flavorful finishing oil covers most needs.
