One of my first field trips on my culinary discovery led me to another world famous product from this area "the black gold from Modena" - Balsamico vinegar.
Balsamic vinegar production in Modena
The process of producing sounds simple: take 100 l of grape juice, cook it for 12 hours, put it in barrels and wait 25 years - you'll get 2 l Aceto.
Of course it's not that simple: the grapes have to be Trebbiano and Lambrusco from your vineyard (which has to be in Modena), only the first juice is allowed to take. You should have a big house with a big attic for the barrels (also in Modena) and you need the knowledge of 340 years of experience to produce, what the Duke of Este invented accidently and called "Balsamico" - they used it like a medicin for digestion, later is was given to kings and the pope as a present and it got famous in the royal families in Europe.