Frying and cooking with olive oil: smoke point, stability, and practical tips
Smoke Point of Olive Oil
The smoke point is the temperature at which an oil in the pan begins to smoke visibly. Beyond this point, it decomposes much faster, and its flavor turns bitter and burnt. For extra virgin olive oil, the smoke point typically lies between approximately 180 and 210 °C. This is lower than many refined oils, but significantly higher than the temperatures you need for most everyday dishes.
Important: Smoke points are not fixed natural constants. They depend on the quality, the free fatty acid content, the freshness of the oil, and the measurement method. This is why you will find different values in various sources. The table shows typical ranges for orientation, not exact values.
| Oil | Typical Smoke Point (approx.) | Culinary Note |
|---|---|---|
| Extra Virgin Olive Oil (EVOO) | 180–210 °C | Raw, for finishing and medium heat |
| Refined Olive Oil | 200–240 °C | Neutral in taste, for higher heat |
| Refined Rapeseed Oil | 200–230 °C | Neutral, for searing |
| Refined Sunflower Oil | 210–230 °C | Neutral, rich in polyunsaturated fatty acids |
| Cold-pressed Rapeseed Oil | 130–190 °C | Better for salads and gentle heat |
| Butter | 150–175 °C | Milk proteins burn quickly |
| Clarified Butter / Ghee | 200–250 °C | Suitable for high heat |
| Linseed Oil | below 110 °C | Use cold only |
Typical cooking temperatures for comparison: gently sweating vegetables is at about 120–140 °C; frying eggs and fish at about 140–170 °C. You only regularly exceed 200 °C when searing intensely or using a wok.
More important than the smoke point: oxidative stability
The smoke point only indicates when an oil visibly smokes. It says little about how much it has already changed while heating beforehand. For this, oxidative stability is crucial, i.e., how well an oil resists the attack of oxygen under heat.
Two factors work together here. First, the fatty acid profile: Monounsaturated fatty acids like oleic acid have only one double bond and react more slowly with oxygen than polyunsaturated fatty acids, which dominate in sunflower or linseed oil. Extra virgin olive oil consists primarily of oleic acid. Second, the natural minor components: Polyphenols and tocopherols in extra virgin olive oil can slow down oxidation when heating. Refined oils lose a large portion of these during processing.
Freshness also counts: A low level of free fatty acids is considered a factor for a higher smoke point. An old, poorly stored oil will smoke sooner than a fresh one.
For your everyday life, this means: A high smoke point alone does not make an oil a better frying oil. For medium heat, extra virgin olive oil is a solid choice. If the pan is smoking, it is too hot, regardless of which oil you are using. In that case, simply turn down the heat.
A 2018 study found that EVOO formed fewer polar degradation products when heated than several refined oils – despite having a lower smoke point (De Alzaa, Guillaume & Ravetti, Acta Scientific Nutritional Health 2018).
Medium heat is perfectly sufficient for many kitchen applications
Sautéing vegetables, eggs, fish, stir-fry dishes – most of these applications do not require extremely high temperatures. Medium heat (140–180 °C) is perfectly sufficient.
If it smokes, it is too hot – reduce the heat. This applies to every oil. Smoke is a signal that the oil is decomposing.
Practical rule: Preheat the pan, add the oil, and start once it becomes shiny (but is not smoking).
Typical cooking temperatures: sweating vegetables (120–140 °C), frying eggs (140–160 °C), frying fish (150–170 °C), frying chicken (160–180 °C). All of these applications are within the EVOO-compatible range.
Only at very high temperatures (searing a steak at 200–250 °C, wok cooking at 200+ °C) might a neutral oil with a higher smoke point be more practical.
Flavor: Where EVOO shines and where it interferes
EVOO has a distinct, unique aroma – fruity, bitter, peppery. This is a feature when used raw (salads, soup, pasta). When frying at medium heat, some of the aroma is retained.
At very high temperatures or long cooking times, the volatile aromatic compounds are largely destroyed. This is a "waste" argument: Why use an expensive, aromatic oil if the aroma disappears anyway?
For neutral dishes (e.g., Asian cuisine, very hot woks), a neutral oil can be more practical – this is a culinary, not an ideological, decision.
A good rule of thumb: EVOO for Mediterranean, European cuisine and wherever the flavor fits. Neutral oil for Asian cuisine and very high heat.
How Solio fits in
Solio is primarily intended as a morning ritual and for raw/finishing applications, because that is where the aroma and minor components are best showcased.
Cooking is still possible – in that case, prefer medium heat, and do not "preheat the pan while empty for too long." Solio works excellently for vegetables, eggs, and fish.
The logic: Use Solio where it brings the greatest added value (raw, finish, medium heat). For extremely high heat, there are better, cheaper alternatives.
Practical example: A morning shot (10 ml) of Solio pure, at lunch Solio over salad, in the evening for sweating vegetables – and use a neutral oil for a seared steak. That way you make optimal use of Solio.
Myths and facts
Myth: "EVOO is toxic when heated." False. If an oil is heated above its smoke point, it decomposes faster and tastes burnt – this applies to every oil. At medium heat, EVOO is well-suited.
Myth: "Only refined oils are suitable for frying." False. EVOO is suitable for frying as long as moderate temperatures are used.
Fact: "EVOO loses polyphenols when heated." Partially true. At temperatures above 150 °C, polyphenols begin to degrade. At medium heat, a portion is retained.
Fact: "EVOO is more stable than many vegetable oils." True. Thanks to oleic acid and natural antioxidants, EVOO is oxidatively more stable than many polyunsaturated oils.
Myth: "Heated EVOO turns into saturated fat." False. The fatty acid structure does not change at normal cooking temperatures.
FAQ
Is cooking with EVOO unhealthy?
For many applications, no. Avoid constant overheating and smoke. At medium heat, EVOO is safe and stable.
Does EVOO lose everything when heated?
Flavor can suffer, and polyphenols can be partially degraded. That is why raw/finishing is often the best use – but cooking is not forbidden.
What is the best use for Solio?
For many: a morning shot (10 ml) or as a finish on food – simple, consistent. Cooking at medium heat is fine; very high heat is less ideal.
Which oil for very high heat?
Refined rapeseed oil, peanut oil, or avocado oil have higher smoke points and are neutral in flavor.
Sources
- UC Davis – Olive Oil Myths & Facts
- De Alzaa F, Guillaume C, Ravetti L. Evaluation of Chemical and Physical Changes in Different Commercial Oils during Heating. Acta Scientific Nutritional Health. 2018;2(6):2–11.
- American Heart Association – Cooking Oils Comparison
