Actually back in early days. Japan is good on this. I still remember my teacher in school tell me Japan is Good in Copy others invention But they modify it to become even better. Likewise now is China. They can make it even cheaper.
I want to reverse engineer burgers at burger king and start my own burger place.
Dam long I never eat any fast foods but I do can tell the difference between Burger King and MCD. They do have their own unique taste. Like MCD Nuggets. You will noticed if you go buy those frozen one at home cook. That taste is unlike MCD ones . Not sure what MCD put on their nuggets got that unique taste of their own.