Culatello di Zibello has been produced in the municipality of Zibello and a handful of surrounding villages along the Po River in Parma province since at least the 14th century. The DOP designation, granted in 1996, restricts production to a tightly defined zone where winter river fog โ the nebbia โ creates the unique humidity that drives the 10-to-24-month curing process. The muscle is massaged, salted, tied inside a pork bladder, and hung in cellars that flood seasonally, making Culatello one of the most terroir-specific cured meats in the world.