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[The Evolution of Pizza: From Humble Street Food to a Global Phenomenon]-[Preview: The surprising history of pizza]

HistoryExtra podcast · B2 · 2026-04-25

History
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📋 Summary

The Origins and Evolution of Pizza

In the latest installment of the History’s Greatest Dishes podcast, food historian Dr. Annie Gray joins host Emily Griffiths to dissect the storied past of one of the world’s most iconic foods: pizza. While many modern consumers treat pizza as a static fast-food staple, Dr. Gray highlights that its identity is deeply rooted in the history of baking technology and the socio-economic evolution of Naples.

Defining the Pizza Paradox

Dr. Gray provides a precise, if somewhat exclusionary, definition of what constitutes a “true” pizza. She describes it as a “yeast-based flatbread” that is rolled out thinly, layered with toppings, and flash-cooked in a “very hot oven.” This definition serves to dismiss modern variations—such as “cauliflower crust” or “deep dish” styles—which she categorizes as “pizza adjacent” or simply “wrong.”

Regarding the historical claims often linked to ancient civilizations, such as the fresco recently uncovered in Pompeii, Dr. Gray remains skeptical. She argues that while the fresco depicts a “flatbread with some stuff on,” it lacks the cultural and culinary context of the modern dish. She emphasizes that pizza, as a recognizable entity, is a phenomenon of the “17th century onwards,” emerging primarily as a “fairly cheap street food” in Naples, Italy.

The Pineapple Debate: Science vs. Sentiment

Perhaps the most contentious part of the discussion involves the infamous “pineapple on pizza” debate. Dr. Gray, self-identifying as a “huge pineapple enthusiast,” cites surprising data from 2022, noting that “53% of the British population” approve of the topping. She argues that the resistance to pineapple is often performative, with many people feeling “shifty” about admitting their preference due to social stigma.

Dr. Gray offers a unique historical perspective on the “Hawaiian pizza,” noting that it was “notoriously invented by a Greek restaurateur in Toronto.” She suggests that the traditional version should ideally feature “spam and pineapple,” given that Spam became a staple in Hawaii following the Second World War. She insists on the technical necessity of using “tinned pineapple in juice” rather than fresh fruit, as the enzymes in fresh pineapple are too “aggressive” and acidic, potentially ruining the textural balance of the dish.

The Technological History of Flatbreads

Beyond the specific topping debates, the episode explores the broader history of flatbreads. Dr. Gray explains that the popularity of pizza is inextricably linked to the history of ovens. Historically, ovens were “expensive things to build” and required significant fuel and labor to maintain. Consequently, for most of history, people relied on “bake stones” or “griddles” (known in Scotland as a “girdle”) to cook yeasted doughs.

This method of cooking—mixing grains with liquid and applying heat from below—is a universal human tradition. From “South American maize-based tortillas” to “rice-based flatbreads in China,” the flatbread represents a fundamental culinary convergence. Pizza, in this context, is simply the Italian iteration of this global practice, transformed by the specific, intense heat of a “beehive oven” and the distinct culinary culture of Naples. Through this lens, pizza is not just a meal; it is a testament to the global nature of food, where a dish can originate in one culture, be mediated through another, and eventually become a universal favorite.

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📖 Transcript

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