History of pizza world to produce and spread the verace pizza napoletana philosophy and method. There are many famous pizzerias in Naples where these traditional pizzas can be found such as Da Michele, Port'Alba, Brandi, Di Matteo, Sorbillo, Trianon, and Umberto (founded: 1916). Most of them are in the ancient historical centre of Naples. These pizzerias will go even further than the specified rules by, for example, using only San Marzano tomatoes grown on the slopes of Mount Vesuvius and drizzling the olive oil and adding tomato topping in only a clockwise direction. The pizza bases in Naples are soft and pliable. In
San Marzano tomato San Marzano "the most important industrial tomato of the 20th century"; its commercial introduction in 1926 provided canneries with a "sturdy, flawless subject, and breeders with genes they'd be raiding for decades." Though commercial production of the San Marzano variety is most closely associated with Italy, seeds for the variety are available worldwide.. It is an heirloom variety. Canned San Marzanos, when grown in the Valle del Sarno (valley of the Sarno) in Italy in compliance with Italian law, can be classified as "Pomodoro S. Marzano dell'Agro Sarnese-Nocerino" and have the EU "DOP" emblem on the label. Most San Marzano