When you cook olive oil too hot, it starts producing chemicals that smell rancid — like old nuts or grease — and these chemicals can be used to tell if the oil has been overheated.

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Evidence from Studies

Supporting (1)

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5

Thermal-Induced Alterations in Phenolic and Volatile Profiles of Monovarietal Extra Virgin Olive Oils

Cross-Sectional Study

In Vitro

2024 Nov 4

Scientists heated olive oil really hot and found that three specific smell chemicals went up a lot—so now we know these chemicals can tell us when olive oil has been overheated.

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Source Study

Thermal-Induced Alterations in Phenolic and Volatile Profiles of Monovarietal Extra Virgin Olive Oils

Score: 5

DOI: 10.3390/foods13213525

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