What Are San Marzano Tomatoes? Italy's Most Famous Plum Tomatoes

San Marzano tomatoes are considered by many chefs to be the finest tomatoes for Italian cooking. Grown in southern Italy and prized for their naturally balanced flavor, they are the traditional choice for many classic pasta sauces, pizza, and slow-cooked Italian dishes.

Their sweetness, low acidity, and firm flesh make them ideal for creating smooth, flavorful sauces with very little preparation.

What Are San Marzano Tomatoes?

San Marzano tomatoes are a plum tomato variety originally cultivated near Naples in the Campania region of Italy. They are known for their elongated shape, bright red color, fewer seeds, and naturally dense flesh.

Because they contain less water than many other tomato varieties, they produce rich sauces without requiring long cooking times.

What Does DOP Mean?

Some San Marzano tomatoes carry the DOP (Denominazione di Origine Protetta) certification, which guarantees they were grown and packed according to strict standards within the designated San Marzano production area near Mount Vesuvius.

Not every excellent Italian tomato is DOP-certified, but authentic Italian producers are known for preserving the natural flavor and quality that make San Marzano tomatoes famous.

Why Are They Different?

  • Naturally sweeter than many canned tomatoes.
  • Lower acidity creates balanced sauces.
  • Dense flesh produces a rich consistency.
  • Fewer seeds and less excess water.
  • Ideal for both quick and slow-cooked sauces.

Best Uses

San Marzano tomatoes are the traditional choice for many Italian recipes, including:

Should You Crush Them by Hand?

For many traditional Italian sauces, yes.

Hand-crushing preserves the tomatoes' natural texture and produces a rustic sauce that blends beautifully with pasta. A blender creates a much smoother consistency, which is not always desirable.

Do They Need Sugar?

Generally, no.

High-quality Italian tomatoes are naturally balanced and rarely require added sugar. If a sauce tastes overly acidic, it is often better to allow it to simmer gently rather than masking the flavor with sweetness.

Marco's Tip

I rarely blend San Marzano tomatoes completely. Crushing them gently by hand creates a sauce with texture and character. Simplicity is one of the reasons Italian tomato sauces taste so fresh.

Where to Buy Authentic Italian Tomatoes

At Olio&Olive, we carefully select authentic Italian tomatoes from trusted producers known for their quality and traditional methods.

Explore Our Italian Tomatoes & Sauces →

Want to Learn Authentic Italian Cooking?

If you're in the Dallas area, join one of our cooking classes to learn how authentic Italian ingredients come together in traditional regional recipes.

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About the Author

Marco is the founder of Olio&Olive, an Italian food importer and cooking instructor originally from Vicenza, Italy. For more than twenty years, he has specialized in sourcing authentic Italian ingredients and sharing regional Italian cooking traditions through educational articles and hands-on workshops.

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