San Marzano tomato tomatoes sold commercially are grown in Italy, though they are produced commercially in smaller quantities in other countries. Because of San Marzano's premium pricing, there is an ongoing battle against fraudulent product. On November 22, 2010, the Italian carabinieri confiscated 1,470 tons of canned tomatoes worth €1.2 million of improperly labeled product. San Marzano tomatoes, along with Roma tomatoes, have been designated as the only tomatoes that can be used for Vera Pizza Napoletana (True Neapolitan Pizza). San Marzano tomatoes originate from the small town of San Marzano sul Sarno, near Naples, Italy, and were first grown in volcanic soil
San Marzano Oliveto returned to Asinari control. It was subsequently transformed into a country residence. The town hall dates from 1889. It is a multipurpose building that houses local government offices, a primary school, and the post office. The Parish Church of San Marziano was built in classic Renaissance style with a neoclassical nave, presbytery and choir. Located in front of the castle, it was founded in the thirteenth century, enlarged from 1758 to 1763, and restored in 1843. The economy of San Marzano Oliveto is based on agriculture. The arable land constitutes 75% of the total area; about 300 people are engaged