Is this true? How does a potato become a DOC? This is too funny... But one of my friends on Facebook was in the area one time, I think last year, and he posted this picture of the entrance in a city where the sign with "patata DOC" was.. I just can't find the picture, as he has thousands posted on the social media... So, is this true? Is Brianza really the place where the potatoes are THAT important?