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Ossau-Iraty — AI-generated illustration AI-generated illustration

AOC — PDO — Aquitaine

Ossau-Iraty

Between the Ossau valley and the Iraty forest, the oldest sheep's milk cheese of the western Pyrenees carries within it seven thousand years of transhumance and the breath of the Basque and Béarn summer pastures.

Uncooked pressed cheese from Aquitaine, PDO (AOP) since 1996.

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At a glance

History & Origins

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Ancient roots and birth of the product

Ossau-Iraty traces its roots back to the dawn of pastoral times: in this western part of the Pyrenees, traces dating from the Neolithic era bear witness to the existence of an agro-pastoral system. Roman authors already attested to the importance of this Pyrenean pastoralism and its products: Martial, in the 1st century AD, mentioned the presence of sheep's milk cheeses — undoubtedly of Pyrenean origin — in the markets of Toulouse. The making of sheep's milk cheese in this western part of the Pyrenees has been documented since at least the Middle Ages, by 14th-century sharecropping contracts and notarial deeds from the early 15th century.

The name of the cheese unites two complementary territories: the Ossau valley in Béarn, dominated by the Pic du Midi d'Ossau, and the Iraty forest in the Basque Country, one of the largest beech forests in Europe. This geographical duality is reflected in the two cheesemaking traditions that coexist under the same appellation, each with its own distinctive size and maturation characteristics.

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Terroir and geographical roots

The terroir of Ossau-Iraty is inseparable from Pyrenean transhumance. Each summer, a large proportion of the flocks are moved up to the high-altitude summer pastures, where the sheep graze on natural or temporary meadows rich in varied grasses — plant cover that directly shapes the characteristics of the milk and subsequently the cheese.

Three local sheep breeds are permitted by the PDO: Manech Tête Noire, Manech Tête Rousse and Basco-Béarnaise. They produce slightly less milk than other breeds, but are the only ones hardy enough to withstand the dampness of Pyrenean pastures and undertake the summer transhumance, thus making full use of the Basque and Béarn foothills and mid- to high-mountain grazing lands.

Heritage and local culture

AOC recognition in 1980 was born out of a fight for identity. As early as 1975, faced with the risk of seeing their traditional sheep's milk cheese become a mere diversification product for the Roquefort AOC, producers from the Basque Country and Béarn formed a defence association to protect their ancestral cheese. The European PDO consolidated this protection in 1996.

Today, the ‘Route du Fromage PDO Ossau-Iraty’ offers 129 stops to discover across Béarn and the Basque Country: farms, cheese dairies, maturing cellars, summer pasture huts and producers’ shops. The tradition of ardi gasna (sheep's milk cheese in Basque) remains a pillar of the local culinary identity, traditionally served with black cherry jam from Itxassou.

Product characteristics

Sensory profile

Appearance

Hard rind a few millimetres thick, ranging in colour from orange-yellow to grey (Béarn cheeses, washed in cellars, are more deeply coloured than Basque cheeses, which are dry-rubbed); ivory-white to amber-cream paste depending on maturation, smooth and firm to unctuous, which may show small openings.

Aroma

Subtle, at times evoking floral or fruity notes.

Taste

A balance between richness and tanginess, moderately salted, often with hazelnut aromas.

Texture

Melting or firmer depending on the length of maturation and time spent in the salting room.

Varieties

Ossau-Iraty fermier

Made exclusively from raw milk by the farmer, on the farm or in the summer pastures. Recognisable by the stamp depicting a full-face sheep's head. Can weigh up to 7 kg, compared to a maximum of 4 to 5 kg for the dairy cheese.

Ossau-Iraty laitier

Made in a cheese dairy from thermised or raw milk collected from several flocks. Bears a stamp depicting a sheep's head in profile.

Ossau-Iraty fermier d'estive

A farmhouse cheese made in high-altitude huts, open between late May and early October. In addition to the full-face head, it bears an extra stamp in the shape of an edelweiss against a mountain.

How it is made

  1. Milk collection — whole sheep's milk, unprocessed and unstandardised: raw for the farmhouse cheese, raw or heat-treated for the dairy cheese.
  2. Renneting — between 28 and 35°C, followed by curdling, cutting and stirring of the curd (grains smaller than or equal to 1 cm³ in size).
  3. Moulding and pressing — in perforated moulds; farmhouse cheese is turned at least once.
  4. Salting — on the surface, with dry salt or in brine.
  5. Maturation — in cellars at 10–12°C: a minimum of 80 days for Basque tommes (2–3 kg), a minimum of 120 days for those from Béarn (4–7 kg).
  6. Maturing care — regular turning and brushing with salted water to which ripening cultures and sometimes red pepper purée have been added.

Tasting & pairings

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Ossau-Iraty is best enjoyed at room temperature, taken out of the refrigerator before serving. The traditional pairing with black cherry jam from Itxassou is an absolute classic, as is quince jelly or a few fresh walnuts — the sweetness enhances the nutty notes of the cheese. For drinks, a red or white Irouléguy from the Basque Country or a dry Jurançon from Béarn make regional pairings much appreciated by connoisseurs.

Labels & certifications

AOC

Since: 1980

Area covered: 372 communes in Pyrénées-Atlantiques + 3 communes in Hautes-Pyrénées

PDO (AOP)

Since: 1996

Area covered: 372 communes in Pyrénées-Atlantiques + 3 communes in Hautes-Pyrénées

Key requirements: Whole ewe's milk from Manech Tête Noire, Manech Tête Rousse or Basco-Béarnaise breeds; minimum maturation of 80 to 120 days depending on size; production and maturation within the geographical area

The people of the terroir

Guarantor body — the producers' association, syndicate or trade body that upholds the appellation Guarantor Ostabat-Asme

Syndicat de Défense de l'AOP Ossau-Iraty

PDO association

Part of the production is certified organic Producer · Award-winning · Organic range Hélette

Fromagerie Agour

Family-run cheese dairy

Part of the production is certified organic Producer · Organic range Macaye

Fromagerie Onetik

Cooperative

Part of the production is certified organic Producer · Award-winning · Organic range Asson

Fromagerie Matocq

Family-run

Producer Musculdy

Ferme Arrokain

Farm

All production is certified organic Producer · Award-winning · Organic Aldudes

Fromagerie Artisanale Etxaldia

Cooperative

Part of the production is certified organic Producer · Award-winning · Organic range Accous

Les Fermiers Basco-Béarnais

Cooperative

All production is certified organic Producer · Organic Sainte-Foy-lès-Lyon

BIODEAL SAS

Artisanal industry

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Guarantor body — the producers' association, syndicate or trade body that upholds the appellation Guarantor Ostabat-Asme

Syndicat de Défense de l'AOP Ossau-Iraty

PDO association

The Syndicat de Défense de l'AOP Ossau-Iraty presents itself as the defence organisation for sheep's milk cheese from Béarn and the Basque Country, recognised as an Appellation d'Origine Contrôlée since 1980 and as a European PDO (AOP) since 1996. Its headquarters are located in Ostabat-Asme, in the heart of the production area.

The association runs the Route du Fromage PDO Ossau-Iraty, a 129-stage itinerary linking the Basque Country to Béarn to meet farmhouse producers and cheesemakers.

Address215 Latsagako bidea, 64120 Ostabat-Asme, France
Phone+33 5 59 37 86 61
Websiteossau-iraty.fr
Part of the production is certified organic Producer Hélette

Fromagerie Agour

Family-run cheese dairy

Maison Agour describes itself as a Basque cheese and charcuterie maker founded in 1981. It matures its Ossau-Iraty PDO (AOP) for 4 to 17 months across its two sites in Hélette and Irati, and boasts a range of over 40 ewe's, cow's and goat's milk cheeses. It also produces Jambon de Bayonne PGI (IGP), cured for 9 to 18 months. The house offers tours of its cheese dairies — including the Musée du Pastoralisme et du fromage in Hélette and the Fromagerie d'Irati — alongside direct sales in its shops and online.

Awards

Concours Général Agricole 2026

Paris

  • Ossau-Iraty laitier AOP
Address950 Rte de Louhossoa, 64640 Hélette, France
Phone+33 5 59 37 63 86
Emailagour@agour.com
Websiteagour.com
FacebookFacebook page
Instagram@maison_agour
VisitsYes
Euro-leaf, the EU organic farming logo Part of the production is certified organic, since 2011.
Part of the production is certified organic Producer Macaye

Fromagerie Onetik

Cooperative

Onetik describes itself as a cheese dairy specialising in Basque Country cheeses, based in Macaye. It states that it collects milk directly from its producers, brought together notably through Basquilait, Béarnlait and Lait des Pyrénées, as part of what it describes as a sustainable partnership designed to preserve jobs in local production areas. On site, it offers tastings at the workshop alongside a local grocery shop, as well as farm visits on Thursdays in July and August, by reservation.

Other products

Address64 GASNAREN KARRIKA, 64240 Macaye, France
Phone+33 5 59 70 27 27
Emailonetik@onetik.com
Websiteonetik.com
VisitsYes
Euro-leaf, the EU organic farming logo Part of the production is certified organic, since 2012.
Part of the production is certified organic Producer Asson

Fromagerie Matocq

Family-run

Fromagerie Matocq describes itself as perpetuating, since 1950, in the footsteps of Jean and then Christian Matocq, the savoir-faire handed down by its shepherds. Its team, it says, mostly composed of Béarnais from farming backgrounds, continues the recipes, values and gestures passed on by its elders. Faced with the seasonality of ewe's milk production, it claims to have combined tradition and modernity to offer cheeses all year round.

The business claims deep roots in its terroir, with Ossau-Iraty as the flagship of its range. It relies on three local breeds — Basco-Béarnaise, Manech tête noire and Manech tête rousse —, presented as the guardians of its traditions. It notes that maturing begins on the farm and finishes in its hâloirs, to reach what it describes as perfect ripeness.

It states that its shepherds, in summer mountain pastures as in the valley, continue to make cheeses using traditional methods.

Awards

Concours Général Agricole 2026

Paris

  • Ossau-Iraty laitier AOP
Concours International de Lyon 2026

Lyon

  • Ossau Iraty AOP

Other products

Address3 Chem. de Grabot, 64800 Asson, France
Phone+33 5 59 71 40 03
Emailcontact@matocq.fr
Websitematocq.fr
FacebookFacebook page
VisitsBy appointment
Euro-leaf, the EU organic farming logo Part of the production is certified organic, since 2013.
Producer Musculdy

Ferme Arrokain

Farm

Ferme Arrokain describes itself, on the page dedicated to it by the Syndicat de l'Ossau-Iraty PDO (AOP), as a family farm set at the foot of the Col d'Osquich in Musculdy, in Soule. There it raises dairy "Tête Rousse" ewes for Ossau-Iraty PDO, as well as Kintoa Basque pork and Blonde d'Aquitaine cattle, crafting its recipes on site while combining authenticity and quality. The family highlights a savoir-faire born from the alliance between rural life, local breeds and people, and welcomes visitors to share its passion for the craft.

Other products

AddressMaison Arrokain, Quartier Ehusania, 64130 Musculdy
Phone06 77 78 50 63
Emailmirentxu.mainhaguiet@wanadoo.fr
Websiteferme-arrokain.eus
VisitsBy appointment
All production is certified organic Producer Aldudes

Fromagerie Artisanale Etxaldia

Cooperative

Founded in 2014 from the desire of a group of farmers to oversee the processing of their milk right through to marketing, the cheese dairy of Les Aldudes now bears the name Etxaldia and brings together 35 sheep and dairy cow farmers within the AEK (Aldudeko Esne Kooperatiba) cooperative, in the Basque Aldudes valley. It produces exclusively small-batch cheeses — Ossau-Iraty, cow's, ewe's or mixed-milk tomme, extra-fine churned butter and local UHT milk.

Its dairy Ossau-Iraty PDO (AOP) was awarded a bronze medal at the 2026 Concours Général Agricole.

Awards

Concours Général Agricole 2026

Paris

  • Ossau-Iraty laitier AOP
Mondial du Fromage 2025

Mondial du Fromage et des Produits Laitiers · Tours

  • Ossau Iraty AOP
  • Ossau Iraty AOP

Other products

AddressErreka Gorri, D948, 64430 Aldudes, France
Phone+33 5 59 49 10 31
Emailetxaldia@etxaldia.com
Websiteetxaldia.com
Euro-leaf, the EU organic farming logo All production is certified organic, since 2025.
Part of the production is certified organic Producer Accous

Les Fermiers Basco-Béarnais

Cooperative

Born in the 1970s and 1980s from the merger of farmhouse cheese cooperatives from the Ossau valley and the Aspe valley, this cooperative now brings together 30 farming families from Béarn and the Basque Country (the Ossau, Aspe, Barétous and Soule valleys), who delegate the maturing and marketing of their farmhouse cheeses to it. It matures and markets around 250 tonnes of cheese a year, including Ossau-Iraty PDO (AOP), achieved by farmhouse producers as early as the beginning of the 1980s.

Farmhouse Ossau-Iraty PDO alone accounts for half of its production. The cooperative also matures Tomme des Pyrénées PGI (IGP), as well as farmhouse goat's tommes and mixed cow-ewe or goat-ewe tommes, presented as 100% raw milk.

Its farmhouse range was recognised at the Concours Général Agricole 2026, where it won a medal for its farmhouse Ossau-Iraty PDO.

Awards

Concours Général Agricole 2026

Paris

  • Ossau Iraty fermier AOP

Other products

AddressD834, 64490 Accous, France
Phone05 59 34 76 06
Websitefermiers-basco-bearnais.fr
Euro-leaf, the EU organic farming logo Part of the production is certified organic, since 2018.
All production is certified organic Producer Sainte-Foy-lès-Lyon

BIODEAL SAS

Artisanal industry

Founded in 2000 in Sainte-Foy-lès-Lyon, on the outskirts of Lyon, Biodéal was born of the vision of two entrepreneurs to build an entirely organic, French cheese and dairy supply chain at a time when most organic milk consumed in France was still imported. Twenty-five years on, the company works with partner livestock farmers and maturing cellars in Auvergne-Rhône-Alpes and Franche-Comté, regions where more than 90% of its products are made.

Biodéal presents itself as the only producer of Gruyère France PGI (IGP) in an organic version, alongside a range that revisits great regional cheese classics under the Accord & Fromages brand — successor to R'Bio, marketed by Biodéal for twenty-five years — featuring Comté PDO (AOP), Saint-Nectaire fermier PDO, Ossau-Iraty, Brie, Fourme, and cancoillotte, all certified Agriculture Biologique. The company describes itself as the exclusive distributor of Vilactée, an organic mountain milk collected at altitudes between 600 and 1,200 metres in Auvergne-Rhône-Alpes and packaged within 30 km of collection, and also sells organic butter. Its products, sold in organic shops, supermarket organic aisles, and cheesemongers, are also exported to Europe, the Middle East, and the United States.

Address43 Grande Rue, 69110 Sainte-Foy-lès-Lyon, France
Phone04 69 00 16 88
Emailinfo@biodeal.fr
Websitebiodeal.net
Euro-leaf, the EU organic farming logo All production is certified organic, since 2005.