"You shouldn't heat olive oil!" — you've probably heard this before. Maybe from your grandma, maybe in a YouTube video, maybe on Instagram. And now you're wondering: Can I use olive oil in an air fryer? The short answer: Yes. The longer answer is much more exciting — because it debunks one of the most persistent kitchen myths.

The Myth: "Olive Oil Becomes Toxic When Heated"

This myth has persisted for decades and is based on a misunderstanding surrounding the smoke point. The logic goes: olive oil has a low smoke point, so you shouldn't heat it, because otherwise "toxic substances" will form.

The problem: This statement is simply wrong in its generality. It mixes different types of olive oil, ignores recent research, and has little to do with the reality in your kitchen.

Let's break it down piece by piece.

Understanding Smoke Point: Not All Olive Oils Are Created Equal

The smoke point is the temperature at which an oil begins to visibly smoke. Beyond this point, undesirable compounds can form and the flavor suffers. So far, so correct.

But here's the crucial point: Olive oil is not all the same. There are massive differences depending on the variety and processing.

Extra Virgin Olive Oil (EVOO)

This is the cold-pressed, unfiltered premium version. Full of flavor, full of polyphenols — but with a smoke point of approx. 160-180 °C. For an air fryer at 180-200 °C, this is borderline. EVOO is ideal for salads, dips, and finishing after cooking.

Refined Olive Oil

This is where it gets interesting: Refined olive oil has a smoke point of approx. 230 °C. It is significantly more heat-stable due to the refining process. Free fatty acids and volatile compounds are removed, which massively increases thermal stability — without destroying the fundamental benefits of olive oil.

230 °C — that's well above typical air fryer temperatures of 160-200 °C. So, refined olive oil is ideally suited for the air fryer.

Olive Oil Blends (Refined + Extra Virgin)

And then there are blends: A blend of refined and extra virgin olive oil combines the best of both worlds. The heat stability of refined oil meets the flavor and antioxidants of the extra virgin component.

What Science Really Says

In recent years, several studies have debunked the myth of "dangerous" heated olive oil:

  • Australian Study (2018): Researchers from ACTA (Australian Consumers' Testing Association) compared 10 different cooking oils when heated. Result: Extra virgin olive oil was one of the most stable oils — more stable than canola oil, coconut oil, and even some vegetable oils with a higher smoke point. The reason: the high content of antioxidants (polyphenols) protects the oil from oxidation.
  • Oxidative Stability: The smoke point alone says little about an oil's actual stability. More important are the content of monounsaturated fatty acids and antioxidants. And this is exactly where olive oil excels.
  • Mediterranean Cuisine: In Spain, Italy, and Greece, olive oil has been used for centuries for cooking and frying at high temperatures. The health benefits of the Mediterranean diet are scientifically well-documented.

The bottom line: Olive oil — especially refined and blends — is among the best oils for the air fryer. Period.

The "Golden Ratio": Why 65/35 is the Sweet Spot

If you're looking for the optimal olive oil for your air fryer, there's a mixing ratio that chefs and food technologists consider ideal: 65% refined olive oil and 35% extra virgin olive oil.

Why exactly this ratio?

  • 65% Refined = Heat Stability. The refined portion ensures that the oil remains stable even at 200 °C and does not smoke. You are well below the smoke point and don't have to worry.
  • 35% Extra Virgin = Flavor and Nutrients. The extra virgin portion brings the polyphenols, antioxidants, and the unmistakable olive oil aroma. Enough to make a difference in taste — but protected by the refined portion.

The AÉRfryPRO olive oil spray uses exactly this 65/35 ratio. It is made in Spain, EU-certified, and specially designed for use in air fryers. Heat stable up to 230 °C, with full olive oil flavor — but as a spray, so you can precisely control the amount.

Olive Oil vs. Other Oils in the Air Fryer

How does olive oil compare to the alternatives?

Avocado Oil

Smoke point approx. 270 °C — the champion in terms of heat stability. Very mild and neutral in taste. Ideal if you are working at extremely high temperatures or don't want to overpower the natural flavor of the ingredients. An excellent choice alongside olive oil.

Rapeseed Oil (Canola Oil)

Smoke point approx. 200 °C. Works, but is bland in taste and has a less favorable fatty acid profile than olive oil. Not a bad oil, but not a special one.

Sunflower Oil

Smoke point approx. 225 °C. Heat-stable, but rich in omega-6 fatty acids, which are already overrepresented in the Western diet. Not the first choice if you're aiming for a good balance.

Coconut Oil

Smoke point approx. 175-200 °C (depending on the variety). Gives off a distinct taste — often unsuitable for fries or vegetables. Has its place, but not as an all-rounder in the air fryer.

Supermarket Cooking Sprays

Caution: Many cheap cooking sprays use propellants, emulsifiers, and additives. Some contain hardly any real oil, but mainly lecithin and propellants. Read the label — if it says more than just oil and possibly a natural propellant, stay away.

Practical Tips: Using Olive Oil Correctly in the Air Fryer

To get the most out of your olive oil, here are a few practical tips:

1. Spray Instead of Pour

In an air fryer, it's about minimal amounts — 1-2 ml is enough per serving. This is almost impossible to dose with a bottle. An oil spray gives you control. With the AÉRfryPRO spray, you get 1.6 ml per spray — more precise than many competing products with 1.8 ml per spray.

2. Directly onto the Food, Not into the Basket

For the best browning, spray the oil directly onto your food, not onto the bottom of the basket. Exception: If you want to spray the basket as a non-stick protector (e.g., for fish), a short spray on the rack is sufficient.

3. Before Cooking, Not During

Spray oil before starting. If you open the air fryer in between and respray, you lose heat and the crust can become uneven.

4. Not Necessary for Every Dish

Fatty meat, frozen fries, or pre-marinated dishes don't need extra oil. Fresh vegetables, homemade fries, and breaded items do.

5. Keep an Eye on the Temperature

With a refined olive oil or a 65/35 blend, you're safe up to 230 °C. Most air fryer recipes work between 160-200 °C — so no problem.

Frequently Asked Questions

Can I use extra virgin olive oil in an air fryer?

At lower temperatures (up to 160 °C), yes. For higher temperatures, you're better off with refined olive oil or a blend. The flavor of EVOO is largely lost at high temperatures anyway — so you're wasting premium oil without real added value.

Why does my olive oil smoke in the air fryer?

Either you're using extra virgin olive oil at too high a temperature, or there are oil residues from previous cooking in the basket. Regular cleaning and the right oil will solve the problem.

How much olive oil do I need per serving?

1-2 sprays are sufficient in most cases. That's about 1.5-3 ml — just enough for browning, flavor, and non-stick effect, but far from the 50-100 ml of a deep fryer.

Conclusion: Olive Oil Belongs in the Air Fryer

The myth that olive oil should not be heated comes from a time when there was little distinction between different types of olive oil. Science is clearer today: Refined olive oil and well-designed blends are excellent heat-stable and are among the healthiest oils you can use in an air fryer.

The key lies in the right choice (refined or blend, not pure EVOO at maximum temperature) and the right dosage (spray, don't pour).

And if you want to know which dishes turn out particularly well with olive oil in the air fryer: The Smart Cooking App has AI-powered recipes with suitable temperature settings and oil recommendations — perfect for getting the most out of your air fryer.

So: Yes, olive oil in an air fryer is possible. And how.