Ive got the chance having lunch here at this very restaurant and their service and the beef were impeccable! Simply awesome! Will be back again!! Miss Osaka and Kyoto so much! Okini!!!🙇🏽♂️
A lot of times it is a flavor thing. When liquid ingredients like wine, soy sauce, etc. condense, their flavor profile changes completely. I am not 100% sure that that is the reason it was done in this video, but that is one reason it usually is done.