This is the most common question from people who do high-heat cooking: which oils can actually withstand the heat? For a complete overview, see our Cooking Properties guide.The honest answer requires both the raw smoke point numbers and the context of what those numbers mean in practice — because "smoke point" is a single moment in a gradual process, not a cliff1.
| Oil | Smoke Point | Best Use |
|---|---|---|
| Avocado Oil (refined) | 271°C (520°F) | High-heat everything |
| Rice Bran Oil | 254°C (490°F) | High-heat frying |
| Light/Refined Olive Oil | 238°C (460°F) | High-heat cooking |
| High-Oleic Sunflower | 232°C (450°F) | Versatile high-heat |
| Safflower Oil (high-oleic) | 232°C (450°F) | High-heat baking |
| Canola Oil (refined) | 204°C (400°F) | General frying |
| Extra Virgin Olive Oil | 190–215°C (374–419°F) | Medium-heat cooking |
| Unrefined Coconut Oil | 177°C (350°F) | Low-medium heat |
| Butter/Ghee | 150–177°C (302–350°F) | Low-heat cooking |
You will find different smoke point values in different tables. This is not a conspiracy — smoke point testing varies by methodology:
RUC (Rancimat method): Measures induction time at a fixed temperature. Gives higher values than the traditional smoke point method.
Traditional method: Visual detection of continuous smoke. More relevant to actual cooking experience but less precise.
Purity of oil: Refined oils have higher smoke points than their unrefined counterparts. Refined avocado oil (271°C) vs. unrefined (190°C). Same product, very different numbers.
Freshness: Fresh oils have higher smoke points than aged oils. An oil that has been sitting in a warm cabinet for 6 months will smoke at a lower temperature than the same oil fresh.
For this ranking, I use the maximum values reported for refined versions of each oil, as these represent the most useful numbers for high-heat cooking1.
Smoke point is not the only consideration for high-heat cooking. Equally important:
Fatty acid stability: Some oils smoke at lower temperatures but are actually more stable at high heat because of their fatty acid composition. High-oleic oils (avocado, high-oleic sunflower) resist oxidation better than high-polyunsaturated oils at high temperatures.
Nutritional Quality at temperature: An oil with a very high smoke point but very poor fatty acid profile (like partially hydrogenated oils) is not a good choice despite its heat tolerance.
Flavor impact: The smoke point of an oil only matters if you're cooking at temperatures close to it. If you never deep-fry, a 270°C smoke point is irrelevant to you.
Refined avocado oil has the highest smoke point of any commonly available cooking oil at 271°C (520°F). This makes it the most versatile high-heat oil currently on the market, suitable for:
- Deep frying (175–190°C) — holds stability through multiple uses
- Stir-frying and wok cooking (200–230°C)
- Grilling and searing (surface temperatures 220–260°C)
- Baking at high temperatures
Avocado oil's fatty acid profile is approximately 70% oleic acid (MUFA), making it oxidatively stable at high temperatures. It is also one of the few high-heat oils with a neutral flavor — unlike olive oil, it does not impart olive flavor to foods cooked at high temperature1.
The downside: cost. Avocado oil retails at $18–30 per 500ml, making it significantly more expensive than other cooking oils. For occasional high-heat cooking, it is worth the premium. For daily deep frying, the cost adds up substantially.
Refined olive oil (labeled simply "olive oil" or "pure olive oil") has a smoke point of approximately 238°C (460°F) — comparable to canola and high-oleic sunflower, and substantially higher than extra virgin olive oil.
The advantage over other high-smoke-point oils: refined olive oil has a better fatty acid profile (higher MUFA, lower omega-6) than commodity seed oils like soybean or corn oil. It is a better choice for high-heat cooking from a nutritional standpoint, even though it has been refined and lacks the polyphenols of EVOO1.
Use refined olive oil when you want the health profile of olive oil's fatty acids with the heat stability of a neutral cooking fat.
Canola oil (refined rapeseed oil) has a smoke point of approximately 204°C (400°F) — adequate for most home cooking, but not exceptional. Its primary advantages are low cost and neutral flavor.
The concerns with canola oil:
Omega-6 content: Canola oil is high in linoleic acid (omega-6), which, in excess relative to omega-3, is associated with systemic inflammation. A diet heavy in canola oil may contribute to an unfavorable omega-6:omega-3 ratio.
Processing: Canola oil is almost universally extracted usinghexane solvent extraction, the same as other seed oils. While the hexane is removed during processing, the chemical extraction process itself is a relevant consideration for consumers concerned about food processing.
GMOs: The majority of canola in North America is from genetically modified crops. For consumers avoiding GMOs, organic or high-oleic canola is available but less common.
For high-heat cooking where cost is the primary constraint, canola oil is functional. For health-conscious cooking, avocado oil or refined olive oil offer better fatty acid profiles at a higher price point.
If you do high-heat cooking regularly (deep frying, wok cooking, high-temperature roasting):
- First choice: Avocado oil — highest smoke point, best fatty acid profile, neutral flavor
- Second choice: Refined olive oil — good smoke point, better profile than seed oils
- Acceptable: High-oleic sunflower or rice bran oil
If you don't do high-heat cooking and primarily sauté, bake, or dress:
- Extra virgin olive oil is the best choice — you want its polyphenols, and you're not heating it enough to destroy them
The mistake most people make: using expensive EVOO for high-heat cooking, then using commodity seed oils for finishing and dressings. The reverse — using EVOO where its compounds survive and refined oils where they don't matter — is the more sensible approach.
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 provides some thermal stability, so higher phenol oils tolerate higher temperatures. For comparison: avocado oil reaches 520°F, refined olive oil 468°F, canola 400°F, and EVOO 375–410°F. The smoke point of your specific 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, covering most home cooking. The concern about olive oil becoming "toxic" when heated comes from conflating smoke point with toxicity. For deep frying above 400°F, 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 sautéing and baking but should be reserved for medium-heat uses where its flavor and phenolic compounds add value.1
Some polyphenol loss occurs at temperatures above 180–200°C, but the monounsaturated fat (oleic acid), which comprises 55–83% of EVOO, is thermally stable and does not degrade at normal cooking temperatures. The antioxidant capacity of high-polyphenol EVOO may actually provide thermal protection for the oil during cooking. For maximum nutrient retention, use medium heat and add oil to food rather than preheating to smoking.1
1. International Olive Council. "Olive Oil Production Standards." https://www.internationaloliveoil.org/our-products/olives/
References
- https://fdc.nal.usda.gov/fdc-app.html
- https://www.internationaloliveoil.org/our-products/olives/