[short_description] San Marzano is an Italian tomato and an actual region in Italy. The San Marzano Italian tomato is a type of plum tomato that is longer and thinner than the average plum tomato. They typically have fewer seeds than typical plum tomatoes and are sweet, pulpy, and low in acidity. [/short_description] [product_description] About La San Marzano San Marzano is an Italian tomato and an actual region in Italy. The San Marzano Italian tomato is a type of plum tomato that is longer and thinner than the average plum tomato. They typically have fewer seeds than typical plum tomatoes and are sweet, pulpy, and low in acidity. These tomatoes are famed for their tomatoey intensity and are hard to find in your typical grocery store.