I don't know, risking food poisoning. The Yukihira Genius confirm this flaw itself: if you don't understand the customers need, no matter how you good or famous cooking is, you never win their hearts. If you say him being cooking to the customers just because he like to see his customer's suffering, it only solidifying my point about him being one of the most egotistical jerk in the series. And pal, ego and pride are not the same thing! The one that Kuga really cooked is not really a Chinese Cuisine, it more like a when Latin-American Red Peppers met Chili-Padi Rojak. The only way to see progress in life is to willing to learn and experience more while mustering it as much as you can, the Yukihira Genius is one of few manga's underdogs that almost reflects every one of us. I am not sure why you drag the Shokugeki into this but I'm surely going to debate that (much like Goku's speech to Vegeta efforts that even exceed elites. All I see about Kuga's cooking is really uninteresting and I did told you that how generic the cooking would it be? Sure he has the experience about the cooking, but cooking the same dish alone is not enough, meaning that Kuga is merely a one-trick pony despite his abundance in both experience and resource. I can do that cooking too if I want too but only in different methods.