Tomatoes arrived in Italy from the Americas in the mid-1500s, carried across the Atlantic by Spanish explorers who had encountered the fruit in Mexico. But it took nearly 300 years for tomatoes to become the cornerstone of Italian cooking we know today. The journey from suspicious foreign plant to essential ingredient is one of the most surprising stories in food history.
From Mexico to Spain to Italy
When Spanish conquistadors reached Mexico in the early 16th century, they found Indigenous peoples cultivating a crop called “tomatl” in the Nahuatl language. The Spanish brought seeds back to Europe, where tomatoes first took root in Spain before spreading to other Mediterranean countries.
Italy’s first documented encounter with the tomato dates to 1544, when a botanist named Luca Ghini planted tomato seeds in the university botanical garden at Pisa. Ghini had founded that garden with the support of Cosimo I de’ Medici, the Grand Duke of Tuscany, and his description of the plant likely appeared in a major botanical reference published that same year. By 1548, Cosimo I himself received tomatoes from his Florentine estate. A letter from that year records the safe arrival of the “pomidoro” at the ducal household, making it the earliest known use of that Italian term.
Why Italians Called Them “Golden Apples”
“Pomodoro” translates literally to “golden apple,” from “pomo d’oro.” This tells us something important about what early Italian tomatoes actually looked like: they were likely small and yellow or golden, not the large red fruit we picture today. The name stuck even as red varieties eventually became dominant, and it remains the standard Italian word for tomato.
Two Centuries of Suspicion
For most of the 1500s and 1600s, Italians treated the tomato as a curiosity rather than a food. It belonged to the nightshade family, which includes several genuinely toxic plants, and that association made people wary. Botanists studied it, gardeners grew it as an ornamental, but few people ate it regularly.
There was also a more specific and deadly reason for the tomato’s bad reputation. Wealthy Europeans in the 15th and 16th centuries ate from pewter plates, which contained high levels of lead. The acid in tomatoes leached lead out of the pewter and into the food, causing lead poisoning. People blamed the tomato rather than their tableware, and the fruit’s reputation as a poison took hold among the upper classes. Poorer Italians, who ate from wooden or ceramic dishes, wouldn’t have had the same problem.
The First Tomato Sauce
The shift from ornamental plant to cooking ingredient happened gradually, and southern Italy led the way. In 1692, a Neapolitan chef named Antonio Latini published what is likely the first recorded tomato sauce recipe in Europe. It appeared in his cookbook “Lo Scalco alla Moderna” (The Modern Steward), and he suggested it could accompany anything boiled. Notably, this wasn’t a pasta sauce. It was a general condiment, closer to a salsa than to the marinara we think of today.
That Latini was Neapolitan is no coincidence. Naples and the surrounding Campania region became the epicenter of tomato culture in Italy, partly because the volcanic soil near Mount Vesuvius proved ideal for growing them. The warm climate, long growing seasons, and rich mineral content of the earth produced tomatoes with intense flavor and low water content, perfect for cooking down into sauces.
Naples and the Rise of Tomato Culture
Through the 1700s, tomatoes slowly gained ground in the kitchens of southern Italy, particularly among the working class. Street vendors in Naples began adding tomato to flatbread, creating what would eventually become modern pizza. By the late 18th and early 19th centuries, tomato-topped flatbread had become a local sensation in Naples’s poorer neighborhoods, a cheap and filling meal that could be eaten standing up.
The pairing of tomatoes with dried pasta followed a similar path. Southern Italy had been producing dried pasta for centuries before the tomato arrived, and the combination of the two created something greater than the sum of its parts. The acidity and sweetness of cooked tomatoes complemented the starchy, neutral flavor of pasta in a way that no previous sauce had.
The San Marzano Tomato and Industrial Scale
One variety above all others cemented the tomato’s place in Italian cooking. The San Marzano tomato originated in the small town of San Marzano sul Sarno, in the province of Salerno near Naples, grown in the volcanic soil in the shadow of Vesuvius. According to local tradition, the first seeds arrived in Campania in 1770 as a gift from the Viceroyalty of Peru to the Kingdom of Naples.
San Marzanos are elongated, thick-walled, and low in seeds, which makes them ideal for sauces. They cook down into a dense, sweet paste with less effort than rounder, juicier varieties. When the San Marzano was commercially introduced in 1926, it transformed the Italian canning industry. Heirloom plant conservationist Amy Goldman Fowler has called it “the most important industrial tomato of the 20th century,” noting that it gave canneries a sturdy, flawless product and gave breeders a genetic library they would draw from for decades.
The canning industry, centered around Naples, made tomato sauce available year-round and helped spread it northward through Italy. What had once been a seasonal southern ingredient became a national staple. Italian emigrants in the late 19th and early 20th centuries then carried these food traditions to the Americas, Argentina, and Australia, turning Italian tomato cuisine into a global phenomenon.
Why Italy, Specifically
Tomatoes traveled to many parts of Europe at roughly the same time, yet Italy adopted them far more enthusiastically than France, England, or Germany. Several factors explain this. The Mediterranean climate of southern Italy closely matched the conditions tomatoes evolved in, allowing the plants to thrive with minimal effort. Italy’s regional cooking traditions were already built around fresh vegetables, olive oil, and simple preparations that could easily incorporate a new ingredient. And the economic reality of southern Italy, where many people were poor and hungry, meant there was less room for aristocratic squeamishness about a new food.
The result is that a fruit native to the Andes and domesticated in Mexico became, over roughly four centuries, the single most defining ingredient in Italian cuisine. Every plate of spaghetti al pomodoro is the endpoint of a journey that began with Spanish ships, passed through Medici botanical gardens, survived two centuries of suspicion, and found its home in the volcanic soil of Campania.