Fossil finds demonstrate the presence of the chestnut tree already 23 million years ago. The cultivation area, called Castanetum, goes from 330m to 1,200m of altitude. Its fruits have represented for centuries a valid resource for the survival of the people living in particularly depressed hilly or mountain areas.
San Mauro Marrone is the fruit of a unique and unrepeatable grafting. It differs from the common chestnut for its widened shape, the lighter color with well-marked streaks, the thin peel that can be easily removed, and the tastier and sweeter pulp.