Is sufu a traditional fermentation process?

A, the production of fruit wine and fruit vinegar belongs to the traditional fermentation process, and A is correct;

B, the production of kimchi belongs to the traditional fermentation process, and B is correct;

C, obtaining human insulin through microbial culture, firstly obtaining engineering bacteria through genetic engineering, and the obtained product uses the principle of fermentation engineering, which does not belong to the traditional fermentation technology, and C is wrong;

D, the production of sufu belongs to the traditional fermentation process, and D is correct.

So choose: C.