Heating olive oil really hot makes it get gunkier — about 4.5 times more than at a lower heat — but even at the highest temperature, it doesn’t get gunky enough to be considered unsafe by food safety...

When you heat olive oil super hot, it starts forming gunk (polar compounds), but even at the highest temperature tested, it didn’t get bad enough to be considered unsafe for frying by food safety rules.

When you heat olive oil, it gets more gunk in it — and the hotter you go, the more gunk forms. Some oils (like Armonia) get way gunkier than others (like Manzanilla).

Extra virgin olive oil produces higher levels of polar compounds and oxidative byproducts than saturated animal fats and coconut oil when subjected to prolonged heating.

Prolonged heating of extra virgin olive oil generates significantly higher levels of polar compounds and oxidation byproducts than coconut oil and ghee.

When subjected to prolonged heating, extra virgin olive oil generates significantly higher levels of polar compounds and lipid oxidation byproducts than coconut oil and ghee.