prosciutto

Prosciutto comes from Italian prosciutto, derived from the past participle of the verb prosciugare, meaning 'to dry thoroughly, to make very dry,' from the prefix pro- (thoroughly, completely) and asciugare ('to dry, to wipe dry'), which traces to the Latin exsugere or exsiccāre. The name is thus a description of the process: a prosciutto is a leg of pork that has been thoroughly dried — salted, pressed, and air-cured for months or years until the moisture has largely departed and what remains is concentrated, sweet, and deeply flavored. The word captures the essential quality that makes prosciutto what it is: not smoking, not brining, not cooking, but drying. The Italian language, unusually direct about food production, named the product after the transformation it undergoes.

The production of prosciutto crudo (raw cured ham, distinguished from prosciutto cotto, which is cooked) is one of the most strictly regulated food processes in Europe. Prosciutto di Parma, the most famous designation, carries Protected Designation of Origin (DOP/PDO) status under European Union law, meaning that only hams produced in a specific zone of the Emilia-Romagna region, from specific breeds of pig fed on specific diets including the whey byproduct of Parmigiano-Reggiano production, following specific curing protocols, can bear the name. The pigs are large — typically 160 kilograms or more — and their legs cure for a minimum of twelve months, with premium productions extending to twenty-four months or beyond. The only permitted ingredients are pork and sea salt. The process has been codified because it has been practiced, in essentially the same form, since at least the second century BCE — Cato the Elder describes a Roman ham-curing method that is recognizable as an ancestor of modern prosciutto.

The geography of prosciutto production is the geography of a particular microclimate. The town of Langhirano, the center of Parma ham production, sits at the mouth of a valley in the Apennine foothills where a specific wind — the ponente — blows through the curing cellars at controlled temperatures, carrying with it a particular combination of cool, dry mountain air and the aromatic compounds of the Apennine vegetation. This wind is not a marketing invention; without it, or without the specific atmospheric conditions it creates, Parma ham does not develop the same flavor profile. Curing hams from identical pigs with identical salt in a humidity-controlled warehouse produces a technically correct product that lacks the complexity of the real thing. The terroir of prosciutto is as real as the terroir of wine, and it is built into the word — the thoroughness of the drying depends on the specific conditions under which the drying occurs.

The distinction between prosciutto di Parma and prosciutto di San Daniele (from Friuli, in northeastern Italy) illuminates how the same basic technique produces meaningfully different results in different environments. San Daniele hams are cured with the hoof attached, a practice that is said to facilitate moisture drainage; they are traditionally shaped differently — flatter, more guitar-shaped — and cured in a different mountain microclimate, producing a slightly sweeter, more delicate flavor. Both are prosciutti — both are thoroughly dried — but thoroughly dried under different conditions produces different results. The verb at the root of the word contains the entire argument about why geography matters in fermented and cured foods: drying is not a single act but a process whose outcome depends on everything in the environment where it takes place.