A video has been doing the rounds on Twitter of a chef in Japan who seems to have no trouble at all plunging his hands into boiling oil while making tempura.
The video, which was shared by Twitter user @Yuku1991, shows the chef at a restaurant called Tenkin in Hamamatsu placing pieces of food in tempura batter before dunking them and his fingers in the oil.
— ゆく nʞnʎ (@Yuku1991) August 15, 2018
How does he do it? Well the suggestion is that this fearless feat may be down to something called the Leidenfrost effect, which means that when a much colder liquid, i.e. the batter, comes into contact with a substance that is much hotter than the liquid's boiling point, i.e. the oil, an insulating vapour is created.
However he does it, it’s certainly a neat trick and reminds us of the chef in Thailand, below, who fries chicken with his bare hands.