Research published in 2018 by Acta Scientific Nutritional Health found that when compared to other popular cooking oils, extra virgin olive oil was the most chemically stable after heating at high temperature. In addition, despite being exposed to extreme heat it was still safe to consume. The tests consisted of a 20-minute frying at 240C and a 6-hour deep fry at 180C.
Research published in 2018 by Acta Scientific Nutritional Health found that when compared to other popular cooking oils, extra virgin olive oil was the most chemically stable after heating at high temperature. In addition, despite being exposed to extreme heat it was still safe to consume. The tests consisted of a 20-minute frying at 240C and a 6-hour deep fry at 180C.
https://actascientific.com/ASNH/pdf/ASNH-02-0083.pdf