Mozzarella di bufala campana DOP is the single most important fresh cheese in Italy and arguably the world—a snow-white, pillowy sphere of pulled-curd cheese made exclusively from the milk of water buffalo (Bubalus bubalis) raised in the marshlands and plains of Campania, principally around Caserta, Battipaglia, and the Piana del Sele. The production process is a masterclass in the pasta filata technique: fresh buffalo milk is curdled with natural whey starter (caglio), the curd is cut and left to acidify for several hours until it reaches the precise pH (around 5.2) at which it becomes elastic and can be 'stretched.' The acidified curd is then immersed in near-boiling water and worked by hand—pulled, stretched, and folded repeatedly until it achieves a smooth, glossy exterior and a layered, fibrous interior. Individual portions are torn ('mozzata'—from mozzare, to cut or tear, giving the cheese its name) and dropped into brine or the milky whey liquor in which they are sold. The result is a cheese of extraordinary complexity: the exterior is smooth and porcelain-like, yielding under gentle pressure to reveal an interior of layered, striated curd that weeps a milky, slightly acidic whey when cut. The flavour is grassy, tangy, and subtly musky—distinctly different from cow's milk mozzarella (fior di latte), which is milder and less complex. Genuine mozzarella di bufala should be consumed within 24-48 hours of production, at room temperature, and ideally torn by hand rather than cut with a knife. Its canonical pairings are the Caprese salad (with San Marzano tomatoes and basil), pizza (though it releases more moisture than fior di latte, requiring careful handling), and eaten alone with good bread and olive oil. The DOP certification, granted in 1996, protects both the geographic origin and the production method, but the market is awash with imitations—genuine buffalo mozzarella from Campania is identifiable by its porcelain sheen, its springy-then-yielding texture, and its complex, almost gamey aroma.
Must be made from 100% water buffalo milk. The pasta filata stretching technique is essential. Consume within 24-48 hours of production. Serve at room temperature, never cold. Tear by hand when possible. Store in its own liquid.
Remove from refrigerator at least 30 minutes before serving. The liquid it's stored in is flavourful—use it in bread dough or as a cooking liquid. When using on pizza, tear into pieces and add halfway through baking to prevent burning. The best mozzarella producers in Campania offer daily-fresh balls—seek these out.
Refrigerating and serving cold (kills the flavour and texture). Using cow's milk fior di latte when buffalo is specified. Slicing instead of tearing. Storing without liquid. Cooking at too high temperature (becomes rubbery). Buying 'mozzarella' that isn't genuine DOP.
La Cucina Napoletana — Jeanne Carola Francesconi; Il Cucchiaio d'Argento; Slow Food Foundation