How Feta Is Made, and Where It Comes From

The Legal Definition and the Grazing Lands

Feta is not a generic name for crumbly white cheese kept in brine. Under European Union law, confirmed decisively by the European Court of Justice in 2005, the name belongs solely to cheese made in specific regions of Greece according to strict historical standards. The designated zone encompasses Macedonia, Thrace, Epirus, Thessaly, mainland Central Greece, the Peloponnese, and the island of Lesbos. Other territories, including Crete and the Cyclades, cannot legally produce cheese labelled as feta, despite having ancient cheese-making traditions of their own.

The milk itself must come exclusively from local breeds of sheep and goats that pasture on native flora within these defined areas. Greek regulations permit only pure sheep milk or a blend containing a maximum of 30 percent goat milk. Cow milk is entirely forbidden. The landscape supplies the cheese with its characteristic aromatic depth; the hardy animals forage on wild thyme, oregano, and scrub vegetation across rocky hillsides, producing rich, concentrated milk with a naturally high fat and solids content.

From Coagulation to the Moulds

The cheese-making process begins with milk that is either raw or gently pasteurised. If pasteurised, starter cultures of lactic acid bacteria are introduced to restore acidity and guide fermentation. The milk is warmed to around thirty-two to thirty-four degrees Celsius before rennet is introduced. Traditional producers use animal rennet, usually derived from the stomachs of young ruminants, to curdle the milk into a firm, custard-like mass over the course of forty-five to sixty minutes.

Once set, the curd is sliced into clean cubes using curd knives or wires. This cutting encourages the green-tinted whey to separate from the protein solids. Unlike Cheddar or hard Alpine cheeses, the curd for feta is not cooked or heavily scalded. Instead, it rests briefly before being transferred into perforated plastic or stainless-steel moulds, or into hanging cheesecloth bags known historically as tsantilas. Gravity alone drains the curd. The moulds are turned several times over several hours to ensure even drainage and to allow the curds to knit together under their own weight into a solid block.

Dry Salting and the Transformation in Brine

After draining, the blocks are removed from the moulds and subjected to dry salting. Coarse sea salt is rubbed across the surface of the cheese blocks in successive applications over a couple of days. This step draws out surface moisture, forms a delicate protective rind, and controls bacterial activity. The cheese remains at room temperature for several days while the pH drops, typically settling below 4.6, which gives feta its clean, sharp lactic snap.

Following the dry-salting phase, the blocks are rinsed or wiped, cut into smaller portions, and submerged in brine tanks or traditional wooden barrels. The brine solution usually contains around seven to eight percent salt. The containers are sealed and moved into cool ripening rooms kept at roughly fourteen to sixteen degrees Celsius for a minimum of fifteen days. During this initial stage, the cheese absorbs salt and develops its underlying structure.

Barrel Ageing, Storage, and Flavour

To satisfy Protected Designation of Origin regulations, feta must age for at least two months from the date of curdling. The secondary maturation happens in cold storage, between two and four degrees Celsius. Historically, Greek dairies matured feta in seasoned oak or beech barrels, a practice still maintained by artisan producers. Wood allows micro-oxygenation and harbours beneficial yeasts and moulds that lend a peppery, complex, rustic edge to the cheese. Modern commercial production favours lacquered metal tins, which produce a cleaner, brighter, and more uniform lactic profile.

A mature feta should be pale porcelain white, firm yet crumbly, with small irregular fissures and no skin. If a block appears yellow, it has either oxidised from exposure to air or contains illicit cow milk, which carries carotene into the curd. High-quality feta should feel creamy on the tongue rather than chalky, delivering a balance of clean acidity, rich sheep fat, and balanced saline bite.

Feta at the Greek Table

In Greece, feta is eaten daily and treated as a table essential rather than a rare garnish. It is presented unadorned in a shallow dish, sliced into thick slabs and doused with extra virgin olive oil and a scatter of dried oregano. It forms the anchor of a summer horiatiki salad, perched atop ripe tomatoes, cucumbers, and onions.

In the kitchen, its high melting point allows it to soften and char without turning into an oily puddle. Cooks bake it wrapped in parchment or filo, fry it crisp for saganaki, fold it into fresh herbs and greens for spanakopita, and crumble it into rich tomato sauces for baked seafood or vegetable stews. When buying feta outside Greece, look for blocks packed in brine with the yellow-and-red EU PDO seal. Avoid pre-crumbled tubs, which often contain anti-caking agents that rob the cheese of its moisture and silky texture.