Smoke point is the temperature at which an oil begins to produce visible smoke and a suite of degradation byproducts — including acrolein, a lung irritant, and aldehydes that contribute to oxidative stress. For a complete overview, see our Cooking Properties guide.Above this temperature, the oil's chemistry changes rapidly: fatty acids oxidize, antioxidants are destroyed, and the flavor turns acrid and unpleasant.
But smoke point is also misunderstood. An oil reaching its smoke point during typical home cooking is uncommon — most home cooking stays well below the smoke points of all common cooking oils. Understanding smoke point matters most when you are: deep frying (where oil temperature can reach 350–375°F), using a carbon steel wok over high BTU burners, or broiling/grilling at very high heat.
The more important characteristic is oxidative stability — how well the oil resists degradation at temperatures below its smoke point. In that metric, the ranking changes significantly from the raw smoke point numbers.
Here are the major cooking oils ranked from highest to lowest smoke point, with notes on best and worst uses:
| Oil | Smoke Point (°F) | Smoke Point (°C) | Best For |
|---|---|---|---|
| Avocado oil (refined) | 520°F | 271°C | High-heat searing, deep frying, wok |
| Avocado oil (unrefined) | 480°F | 249°C | Sautéing, baking |
| Safflower oil (high oleic) | 510°F | 266°C | High-heat frying |
| Sunflower oil (high oleic) | 475°F | 246°C | High-heat cooking |
| Canola oil (refined) | 468°F | 242°C | General frying, baking |
| Olive oil (refined/pomace) | 468°F | 242°C | High-heat applications |
| Coconut oil (refined) | 450°F | 232°C | High-heat frying, baking |
| Sesame oil (refined) | 410°F | 210°C | Stir-frying, Asian cooking |
| Olive oil (extra virgin) | 375–410°F | 190–210°C | Sautéing, roasting, dressing |
| Flaxseed oil | 225°F | 107°C | Cold use only — dressings |
11^ ## The High-Smoke-Point Contenders
Refined avocado oil tops the list at 520°F (271°C)1. It is cold-pressed from the avocado fruit, then refined to remove chlorophyll and increase smoke point. Unlike most refined oils, it retains more of the fruit's nutrient profile — including lutein, a carotenoid antioxidant, and oleic acid (MUFA at roughly 70%)1.
For high-heat applications — wok cooking, deep frying, searing — avocado oil is the most stable and nutritious choice available. It behaves like a high-Quality cooking fat: neutral enough for savory applications, but with enough character to work in both directions.
The primary downside is price — avocado oil is 3–5× more expensive than canola. But if you're doing significant high-heat cooking, the cost is justified by superior oxidative stability.
Canola hits 468°F (242°C) and is significantly cheaper than avocado oil. It is also highly refined and neutral in flavor, making it versatile across cuisines1.
However, canola's high ALA content (roughly 9% alpha-linolenic acid) makes it more prone to oxidative degradation at high temperatures than its smoke point implies1. ALA is highly reactive with oxygen; when heated, it forms lipid peroxides and aldehydes that are not destroyed by further cooking. This is a legitimate concern for consumers who use canola frequently for high-heat cooking.
If you're going to use canola for deep frying, use it at temperatures below 375°F and replace it more frequently than you might think necessary.
Refined olive oil — including olive pomace oil — has a smoke point of roughly 468°F (242°C)1 , comparable to canola. It retains less flavor than EVOO but more of the olive's fatty acid profile. Olive pomace oil, in particular, is a byproduct of the mechanical extraction process that is then refined with solvents to remove remaining oil from spent olive paste.
Pomace oil is not extra virgin and has none of the polyphenols of EVOO. But it is a step above seed oils like soybean or corn oil in fatty acid composition. It's acceptable for high-heat cooking when you want an olive-adjacent flavor at lower cost1.
EVOO sits at 375–410°F (190–210°C)1 , lower than refined avocado or canola. This is the range that gives people pause — but the concern is overstated.
Most home cooking never reaches 375°F. Simmering and sautéing stay at 212–325°F. Even searing in a cast iron pan typically maxes out at 400–450°F, and only briefly. Within those parameters, EVOO is stable and delivers its phenolic compounds intact1.
The real reason to reserve EVOO for medium-heat cooking and finishing is flavor. At high temperatures, the delicate aromatic compounds that make good EVOO interesting are destroyed or driven off. Saving it for applications where its flavor registers — salad dressings, drizzling over finished dishes, moderate-heat cooking — is the better use of its qualities.
Flaxseed oil has a smoke point of approximately 225°F (107°C) — too low for any cooking application involving heat. Beyond smoke point, flaxseed's high ALA content makes it extremely vulnerable to oxidation, and heating dramatically accelerates this process1.
Use flaxseed oil only in cold applications: smoothies, cold dressings, or drizzling over finished dishes. Store it refrigerated and use it quickly after opening.
Best: Avocado oil (refined) — most stable at sustained high temperature, better fatty acid profile than seed oils1 Acceptable: Canola, sunflower oil (high-oleic varieties) Avoid: EVOO — waste of money at this temp; flaxseed — safety concern
Best: Avocado oil (refined) Acceptable: Canola, refined sesame oil Avoid: EVOO — flavor compounds destroyed at these temperatures
Best: EVOO (if you want the flavor and are at the lower end of this range) Acceptable: Avocado oil (unrefined), high-oleic sunflower/safflower Avoid: Flaxseed oil
Best: EVOO for flavor; avocado oil for high-heat roasting Acceptable: Canola for neutral application Avoid: Flaxseed — will smoke and degrade
Best: EVOO — best flavor and phenolic retention Acceptable: Unrefined flaxseed (stored refrigerated) Avoid: Any highly refined, deodorized oil
Smoke point rankings tell you the temperature ceiling. Oxidative stability tells you how well the oil performs below that ceiling. And fatty acid composition tells you what you're left with after cooking.
On all three dimensions combined, avocado oil is the most capable all-around high-heat cooking oil available. Canola is the budget option with acceptable performance. Extra virgin olive oil is the right choice for medium-heat cooking and finishing — not because it's unsafe at high heat, but because its flavor and nutrients are too valuable to waste on deep frying.
Reserve the premium oils for the applications where their qualities actually register.
Extra virgin olive oil smoke point ranges from 374–410°F (190–210°C) depending on polyphenol content and production method. The polyphenol fraction in EVOO actually provides some thermal stability. For comparison: avocado oil (520°F), refined olive oil (468°F), canola (400°F), and extra virgin olive oil (375–410°F). The specific smoke point of your oil depends on its polyphenol content — higher phenol = higher smoke point.1
Yes — EVOO is safe for sautéing and baking up to 375–410°F, which covers most home cooking. The concern about olive oil and high heat comes from conflating smoke point with toxicity. The compounds that degrade at high heat are the same polyphenols that make EVOO beneficial. For cooking above 400°F (deep frying), refined oils or avocado oil are more appropriate. For medium-heat cooking, EVOO retains both its flavor and most of its beneficial compounds.1
Avocado oil has the highest smoke point among common cooking oils at approximately 520°F (271°C), making it the most versatile for high-heat applications. Among unrefined oils, high-oleic sunflower and safflower oils reach 475–510°F. Extra virgin olive oil at 375–410°F is adequate for most sautéing and baking but should be reserved for medium-heat uses where its flavor and phenolic compounds add value.1
No — the claim that heated olive oil becomes "toxic" is not supported by current research. Polyphenols degrade above 180–200°C but the byproducts are not toxic. The smoke point indicates when an oil produces visible smoke (indicating degradation of volatile compounds) but smoke itself is not inherently dangerous. The antioxidant capacity of high-polyphenol EVOO may actually provide some thermal protection for the oil during cooking.1
1. USDA FoodData Central. "Oil, Avocado." https://fdc.nal.usda.gov/fdc-app.html
1. Kalua CM et al. "Smoke Point and Oxidative Stability of Culinary Oils." Tree and Forestry Science and Biotechnology. 2007.
1. De Greyt W. "Effect of Refining on Quality of Vegetable Oils." Lipid Technology. 2020.
1. USDA Agricultural Marketing Service. "Cottonseed and Canola Oil: Quality and Processing." https://www.ams.usda.gov/about-ams/programs-services/lpgs
References
- https://fdc.nal.usda.gov/fdc-app.html
- https://www.researchgate.net/publication/322876148_Olive_Oil_Volatile_Compounds_and_Quality_A_Review
- https://pubmed.ncbi.nlm.nih.gov/32064756/
- https://www.ams.usda.gov/about-ams/programs-services/lpgs