Pizza has ancient flatbread relatives, a modern identity rooted in Naples and countless regional forms. These 50 facts cover its history, language, ingredients and technique without treating every popular story as settled fact.

  1. Modern pizza is closely associated with Naples, Italy.
  2. The word pizza appears in medieval Italian records.
  3. Flatbreads topped before baking existed long before modern pizza.
  4. Pizza Margherita traditionally uses tomato, mozzarella and basil.
  5. The royal-origin story attached to Pizza Margherita is widely repeated but debated by food historians.
  6. Neapolitan pizza is normally baked very quickly at high heat.
  7. A raised pizza rim is called the cornicione.
  8. Pizza marinara traditionally contains no cheese.
  9. Despite its name, pizza marinara is not a seafood pizza.
  10. Fior di latte is mozzarella made from cow’s milk.
  11. Mozzarella di bufala is made from buffalo milk.
  12. San Marzano refers to a protected tomato designation as well as a tomato type.
  13. 00 describes an Italian flour-grading category, not its protein level.
  14. Gluten helps pizza dough stretch and retain fermentation gases.
  15. Yeast converts sugars into carbon dioxide and other fermentation products.
  16. Longer fermentation can change flavour and dough handling.
  17. Dough temperature affects the speed of fermentation.
  18. Salt contributes flavour and changes dough strength and fermentation.
  19. Hydration is the weight of water expressed as a percentage of flour weight.
  20. A 60% hydration dough uses 600g of water for every 1kg of flour.
  21. Pizza area grows with the square of its radius.
  22. A 16-inch pizza has about 78% more area than a 12-inch pizza.
  23. Cutting a pizza into more slices does not create more pizza.
  24. The outer crust occupies a larger share of a small pizza than a large one when crust width stays equal.
  25. A pizza screen, pan, stone and steel transfer heat differently.
  26. Steel conducts heat faster than cordierite stone.
  27. A thicker baking surface is not automatically better; material and heat input matter too.
  28. An infrared thermometer reads surface temperature rather than air temperature.
  29. A dome thermometer does not necessarily show the centre-stone temperature.
  30. Pizza should be turned when the oven heats one side more strongly.
  31. Too much bench flour can burn on a very hot stone.
  32. Semolina changes launch behaviour but can also scorch at high heat.
  33. Wet toppings can make the centre of a pizza harder to bake.
  34. Fresh mozzarella is often drained before use on pizza.
  35. New York-style pizza is generally larger and baked longer than Neapolitan pizza.
  36. Roman pizza includes several distinct styles rather than one fixed recipe.
  37. Pizza al taglio is sold by the cut and commonly baked in trays.
  38. Pizza bianca means white pizza and usually omits tomato sauce.
  39. Calzone encloses its filling inside folded dough.
  40. Detroit-style pizza is associated with rectangular pans and a crisp cheese edge.
  41. Chicago deep-dish pizza is baked in a deep pan.
  42. St Louis-style pizza is known for a thin, crisp base.
  43. Hawaiian pizza was created in Canada, according to its commonly credited creator Sam Panopoulos.
  44. Pepperoni is an Italian-American cured sausage rather than a traditional Italian salume name.
  45. The Italian word peperoni refers to peppers.
  46. Frozen pizza became a major convenience-food category during the twentieth century.
  47. Pizza boxes need ventilation to reduce trapped steam.
  48. A wire rack keeps a baked base crisper than a flat plate.
  49. A covered frying pan can reheat a slice while restoring crispness to the base.
  50. The best pizza style is a matter of preference, but a balanced bake is observable: the base and top should finish together.