Neapolitan pizza and Roman pizza: guide to technical and nutritional differences

This diversity concerns not only the shape but involves the entire food technology: from oven temperatures to fermentation management. Understanding these distinctions is essential for consumers and international operators to correctly evaluate the quality, digestibility, and nutritional value of what is, in every respect, the flagship product of Made in Italy.

Global trends 2025: growth of the ‘Thin Crust’ segment (Roman pizza)

The  global pizza market has recorded significant growth in recent years, with particular dynamism in premium segments linked to Italian regional traditions. The global market of  frozen pizza reached 18.92 billion dollars in 2025, with projections indicating growth up to 25.54 billion dollars by 2030, registering a CAGR of 6,19% (Mordor Intelligence, 2026).

In 2025, the 58,3% of the frozen pizza market is dominated by the variants with a thin crust – ‘thin crust’, ‘pizza romana’ style – which are increasingly appreciated for greater crispiness, lower carbohydrate content, and a nutritional profile perceived as more balanced compared to pizzas with thick crust (‘thick crust’, ‘pizza napoletana’ style. Future Market Insights, 2026).

The main brands respond to this demand with premium thin crust pizzas, also made with whole wheat, multi-grain and gluten-free doughs, addressing both the nutritional needs of health-conscious consumers and those with dietary restrictions. This, in turn, has recorded faster growth, especially among diet-conscious consumers (IMARC Group, 2025).

At the  international, the export of Italian frozen pizzas has grown significantly, with particularly notable increases in Northern European and North American markets, where the demand for authentic products drives the demand for Made in Italy specialties (Market.us Media, 2026).

Identity and history: the UNESCO heritage of Naples and the evolution of Rome

The  Neapolitan pizza has deep roots in the social fabric of Naples, where in the 18th–19th centuries seasoned flatbread became popular food for the  working classes. The transformation of pizza from street food to gastronomic symbol happened gradually: the famous  Margherita, created in 1889 in honor of Queen Margherita of Savoy by the pizzaiolo Raffaele Esposito, represented a crucial moment of social legitimization (Helstosky, 2008). The variants  marinara e Margherita represent today the essence of the Neapolitan tradition and are recognized as symbols of gastronomic ‘Made in Italy’.

On  2017, precisely on December 7, the art of the Neapolitan pizzaiolo was inscribed in the intangible heritage of humanity by UNESCO, as a testimony to its cultural importance and the need to preserve techniques handed down through generations. The UNESCO recognition highlighted how ‘the culinary know-how related to pizza production, which includes gestures, songs, visual expressions, local jargon, the ability to handle the dough, perform and share, is an indisputable cultural heritage‘ (UNESCO, 2017).

The  Roman pizza instead has its origins in the culinary culture of Lazio, evolving as a local variant that favors a thinner base  thin e crispy. Historically, the Roman tradition of pizza al taglio developed in neighborhood ovens during the post-war period, when the need to optimize space and time favored the creation of rectangular trays with more resistant doughs. This pizza established itself in urban contexts, where quick consumption and the lightness of the product played an important role in establishing its characteristic ‘crackling‘.

The denomination  ‘pizza alla pala’, widespread since the 90s, represents a gourmet evolution of the Roman tradition, with highly hydrated doughs and prolonged leavening that enhance digestibility and aromatic complexity.

The chemistry of the dough: why Roman pizza contains oil and Neapolitan pizza does not

One of the main differences between the two pizzas lies in the  composition of the dough. Both traditionally use type 00 soft wheat flour or type 0 – as well as semi-wholemeal, type 1 and type 2, increasingly common – plus water, yeast and salt, but with different proportions and additions that significantly influence the rheological and sensory properties of the final product.

In the  Neapolitan pizza the dough is very  hydrated (55-65% hydration) and without added fats, resulting soft, elastic and fluffy after baking. The specification of the Traditional Guaranteed Specialty (STG) prescribes the exclusive use of type 0 or 00 flour, water, sea salt, and brewer's yeast, with a leavening process that can last from 8 to 24 hours at room temperature. The processing is strictly manual, using the ‘slap’ technique to stretch the dough without crushing the  air bubbles, thus preserving the alveolar structure that characterizes the crust.

The  Roman pizza features a variable hydration, generally lower (about 55%), as well as the addition of  extra virgin olive oil in the dough (2-4% of the flour weight), to contribute to a crumblier texture and resistance to prolonged cooking. Furthermore, the leavening is often longer (24-72 hours) and cold (4-6°C), increasing the flavor complexity, the formation of aromatic compounds and the  digestibility through enzymatic degradation of proteins and complex starches. Recent studies have shown that prolonged fermentation improves  mineral bioavailability such as iron, zinc, and magnesium, thanks to the reduction of phytic acid (Rizzello et al., 2016; Di Cairano et al., 2020).

The  weight of the dough balls is another distinguishing element: while Neapolitan pizza uses dough balls of about 200–280 grams, Roman pizza generally uses smaller portions (150-180 grams) which are stretched over larger surfaces, resulting in a final thickness below one millimeter.

The oven secret: extreme temperatures for softness vs moderate heat for crispiness

The stretching of the  Neapolitan pizza is strictly manual, emphasizing the formation of a  high edge and alveolated (crust) that traps air and gives softness to the structure. The Neapolitan pizzaiolo works the dough from the center outwards, preserving the outer crown and creating a disk about 30-35 cm in diameter with a central thickness of 2-3 mm.

For the  Roman pizza, the stretching can happen with a more decisive movement and is often accompanied by a  rolling pin or from a more uniform pressure, thus obtaining an extremely thin (1-2 mm) and compact base, without a pronounced crust. In the paddle version, the dough is stretched directly on the wooden paddle, maintaining an elongated oval shape.

The  baking is another key element of differentiation:

• Neapolitan pizza is traditionally baked in  a wood-fired oven at a very high temperature (around 430–485 °C) for a very short time (60–90 seconds), allowing the crust to rise quickly due to the expansion of internal gases and the center to remain soft and juicy. The combustion of beech or oak wood contributes to the characteristic aromatic profile;

• Roman pizza prefers lower temperatures (around  300–350 °C) and longer cooking times (often 4–6 minutes), allowing the base to gradually dry out and become crispy and crumbly (‘scrocchiarella’). In modern electric ovens, precise temperature control favors a  uniform dehydration of the base.

These techniques clearly reflect different gastronomic philosophies: softness e tenderness for Neapolitan;  crispness e structure for Roman.

Nutritional analysis: calories, fats, and digestibility compared

From the point of view  nutritional, the two types of pizza have different profiles mainly related to the different preparation and cooking methods:

• a Neapolitan margherita pizza (about 300 grams) provides on average 800-900 kcal, with a balanced intake of carbohydrates (55-60%), proteins (12-15%) and fats (25-30%), mainly derived from mozzarella (Capozzi et al., 2021);

• The  Roman pizza, thanks to the reduced thickness and the addition of oil in the dough, generally has a slightly lower caloric content with the same toppings (700-800 kcal per portion), with a higher proportion of  monounsaturated fatty acids derived from extra virgin olive oil, which positively contributes to the lipid profile of the product (Delcour & Hoseney, 2010).

Leavening and health: how time transforms gluten into a digestible product

The  prolonged leavening – increasingly common in the production of frozen pizzas, which often indicate the number of hours on the label – promotes the  pre-digestion of complex proteins like gluten and the reduction of rapidly fermentable carbohydrates (FODMAPs), improving digestive tolerance and reducing post-meal abdominal bloating (Gobbetti et al., 2014).

A recent study on pinsa has shown that the use of sourdough (‘biga’) fermented for 48 hours with yeast and sourdough produced the lowest  glycemic index, the highest content of total peptides, free amino acids, and gamma-aminobutyric acid (GABA), as well as the best protein quality indices (Costantini et al., 2023). Other studies have confirmed that sourdough fermentation in pizza doughs significantly improves  digestibility and reduces FODMAP content, making them more suitable for people with intestinal sensitivity (Pontonio et al., 2025). Long fermentation also increases levels of  antioxidants in the dough, with increases of up to 100% in some cases, thanks to chemical reactions induced by yeasts that release antioxidant components bound in the dough (Moore et al., 2007).

Sensory experience: how to recognize authenticity at the first taste

The final result of the two pizzas is immediately distinguishable by eye and palate. The Neapolitan pizza features a  crust pronounced and soft, with an irregular alveolation and an elastic center that invites folding and sharing. Traditional toppings – such as  San Marzano DOP tomatoes, Campana DOP buffalo mozzarella or fiordilatte, fresh basil and extra virgin olive oil – enhance the simplicity and freshness of the ingredients. The ideal serving temperature (60-65°C at the center) allows one to appreciate the soft texture without burning the palate.

The  Roman pizza, on the other hand, offers a uniform and thin base, with a  crunchy texture that accompanies every ingredient without weighing it down. The ‘scrocchiarella’ produces a characteristic crunching sound when chewed, while the flavor is more complex and structured thanks to the long fermentation. This feature also makes it suitable for quick consumption,  in slices or in street food contexts, maintaining crispness even after a few minutes from cooking.

From the point of view  sensory, professional descriptive analyzes have highlighted that Neapolitan pizza has more intense olfactory notes of yeast and buttermilk, while Roman pizza develops greater toasted profiles and hazelnut notes deriving from prolonged cooking.

Conclusions

In summary, the choice between Neapolitan and Roman pizza is not a matter of hierarchy, but of functional and sensory preference. Neapolitan pizza is the emblem of softness and freshness of DOP ingredients; Roman pizza is the modern answer for those seeking lightness and a ‘crunchy’ structure. For the international market, this distinction offers extraordinary positioning opportunities: knowing how to communicate that a pizza is ‘thin and crispy’ (Roman style) or ‘soft and alveolate’ (Neapolitan style) allows precise responseto the expectations of an increasingly informed consumer who is attentive to the quality of Made in Italy agri-food products.

Dario Dongo

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