In a country that has elevated blue cheese to an art form, Bleu de Termignon sits awkwardly, proudly, and a little stubbornly to one side. It has no added mould. No pierced veins. No industrial starter cultures. And no tidy consistency from wheel to wheel. Some wheels are barely blue at all. Others look like they’ve been quietly overtaken by a benevolent fungus with its own agenda.

This is not a cheese you make in the conventional sense. It is a cheese you allow.

And that is precisely why it may be the most unique blue cheese France has ever produced.

A blue cheese that breaks every blue cheese rule

Let’s get the obvious out of the way.

Bleu de Termignon is a blue cheese with:

• no added Penicillium cultures
• no piercing to introduce oxygen
• no guarantee it will even turn blue

From a cheesemaking textbook perspective, this is borderline heresy.

Most blue cheeses rely on deliberate inoculation with Penicillium roqueforti. The mould is selected, cultured, added, and then given oxygen highways through skewering. The process is controlled. Predictable. Repeatable.

Bleu de Termignon shrugs at all of that.

Its blue comes entirely from wild, native moulds already present in the milk and environment. Some wheels bloom with soft blue freckles. Some develop dramatic marbling. Others remain almost entirely white, save for a faint whisper of colour.

All of them are considered authentic.

That variability isn’t a flaw.
It’s the point.

One valley, one pasture, one moment in time

Bleu de Termignon comes from a single corner of the Alps: the Maurienne Valley, tucked within Savoie.

This is not broad-terroir cheese. This is hyper-local cheese.

Production is limited to summer, when cows graze on high alpine pastures rich in wild grasses, flowers, and herbs. These plants shape the milk microbiome, which in turn determines whether blue mould will appear at all.

• No two summers are the same.
• No two pastures are the same.
• No two cheeses are the same.

Bleu de Termignon is seasonal in a way that most modern cheeses simply are not allowed to be anymore.

The milk does all the talking

Raw milk is often described as “complex” or “alive”, but in most cheeses, that life is still guided and restrained.

Not here.

Bleu de Termignon uses raw cow’s milk, and the milk is barely interfered with. There is no standardisation. No attempt to tame its microbial population. The cheesemaker’s role is largely observational.

Think less “engineering” and more “shepherding”.

The milk’s native bacteria, yeasts, and moulds decide:

• if blue mould develops
• how quickly it appears
• how intense it becomes
• how it interacts with the paste

This makes the cheese feel less like a product and more like a biological event.

A blue cheese without veins

One of the most visually striking things about Bleu de Termignon is the absence of classic blue veining.

There are no tidy networks of mould tracing air channels through the paste. Instead, blue appears as:

• small freckles
• cloud-like blooms
• irregular patches

Sometimes the blue is so faint that you need to look closely. Other times it dominates entire sections of the wheel.

The mould grows where it can, not where it’s told to.

This gives the cheese a far more organic appearance than its cousins like Roquefort or Bleu d’Auvergne. It looks wild because it is wild.

The flavour: blue cheese, but not as you know it

If you’re expecting aggressive pungency, slow down.

Bleu de Termignon is not about confrontation. Its flavour profile is surprisingly gentle for a blue:

• milky and lactic at first
• grassy and herbal
• lightly animal
• softly peppery, rather than overtly spicy

When blue mould is present, it tends to bring earthiness and savouriness, not the searing intensity people associate with blues.

Some wheels taste almost like an alpine tomme with philosophical ambitions. Others lean more assertively blue, but even then, the mould rarely dominates.

This makes Bleu de Termignon unusually approachable, even for people who claim not to like blue cheese.

Texture: firm, sliceable, and quietly strange

Most blue cheeses fall into familiar textural categories:

• crumbly
• creamy
• spoonable

Bleu de Termignon does none of those.

It is firm and sliceable, closer to a mountain cheese than a classic blue. The paste can be dense, elastic, and slightly granular, depending on age and moisture.

The blue mould doesn’t soften the paste dramatically. Instead, it integrates into it.

The result is a cheese that behaves more like a hard or semi-hard cheese on the board, while tasting unmistakably blue.

That contradiction alone makes it remarkable.

No AOP, no safety net

Despite its singularity, Bleu de Termignon does not have AOP protection.

This isn’t because it lacks heritage. Quite the opposite.

The cheese is so variable, so dependent on chance and environment, that codifying it into a strict specification would undermine its essence. You cannot mandate wild mould behaviour. You cannot standardise unpredictability.

Its identity survives because:

• production is tiny
• knowledge is passed locally
• tradition outweighs market pressure

In an era of branding and certification, Bleu de Termignon exists largely because it refuses to scale.

A cheese that challenges modern cheesemaking logic

From a modern food safety and consistency standpoint, Bleu de Termignon is uncomfortable.

It asks questions the industry doesn’t love answering:

• How much control is too much?
• Is variability inherently risky, or just unfamiliar?
• Can a cheese still be “excellent” if it refuses to behave?

Bleu de Termignon reminds us that cheesemaking did not begin as a controlled process. It began as an observation of milk’s natural transformations.

This cheese sits closer to that origin story than almost anything else still made today.

Why some wheels never turn blue at all

Here’s the part that really breaks people’s brains.

Some authentic Bleu de Termignon wheels show no blue mould whatsoever.

They are still sold as Bleu de Termignon.

Why?

Because the identity of the cheese is not defined by blue presence alone. It is defined by:

• place
• milk
• season
• method

Blue mould is a possibility, not a requirement.

This forces us to confront an uncomfortable truth: we often define cheeses by visual cues rather than by process or origin. Bleu de Termignon flips that on its head.

The cheesemaker: restraint, patience, and local knowledge

Bleu de Termignon is not made by factories or even by large creameries. It is produced by a small handful of farmers and cheesemakers working within the valley, often alongside their own herds.

One of the most well-known producers is Catherine Richard, whose work has become closely associated with the cheese. She works with a small herd of around 18 cows, primarily Tarine and Abondance breeds, moved to high alpine pasture during the summer months. These hardy mountain cows, and the plants they graze, shape the milk that ultimately decides whether the cheese will turn blue at all.

The cheesemaker’s role here is deliberately minimal. Milk is handled gently. Coagulation, cutting, and draining follow local tradition rather than written protocol. There is no attempt to seed blue mould or to correct its absence. The cheese is simply turned, salted, and aged, with careful attention rather than intervention.

This requires a particular mindset. You need to be comfortable with uncertainty. You need to accept that nature may not perform on cue. And you need enough experience to recognise when a cheese is developing character rather than heading for trouble.

In that sense, Bleu de Termignon reflects its makers perfectly. It rewards patience, humility, and trust in the land. The cheesemaker does not impose identity on the cheese. They protect the conditions that allow it to reveal its own.

Eating Bleu de Termignon is an act of trust

When you buy this cheese, you are accepting uncertainty.

You do not know:

• how blue it will be
• how intense it will taste
• how this year’s pasture shaped it

Instead, you trust the valley. You trust the milk. And you trust time.

That trust is increasingly rare in modern food systems.

Why it will never be widely available

Bleu de Termignon cannot be industrialised without ceasing to be itself.

Scaling would require:

• standardised cultures
• controlled mould development
• predictable outcomes

At that point, it would become a different cheese wearing the same name.

Its rarity is not a marketing choice. It is a biological necessity.

How to serve it (without overthinking it)

Bleu de Termignon doesn’t want fuss.

Serve it:

• at cellar temperature
• sliced, not crumbled
• with simple bread
• maybe boiled potatoes if you’re feeling alpine

Avoid drowning it in sweet accompaniments. Let the milk speak first. The mould will join the conversation when it’s ready.

A cheese that resists definition

Every great cheese tells a story.

Bleu de Termignon tells several, and none of them line up neatly.

It is:

• a blue cheese that may not be blue
• a mountain cheese with mould ambitions
• a raw milk cheese that refuses control
• a product of place more than process

In a country famous for refining cheese into perfected categories, Bleu de Termignon stands apart by refusing categorisation altogether.

That refusal is not a weakness. It is its quiet, stubborn brilliance.

Why Bleu de Termignon might be France’s most important blue cheese

Bleu de Termignon is not the most famous. Not the most powerful. Not the most recognisable.

But perhaps the most honest.

It reminds us that cheese is not just a recipe. It is ecology, chance, restraint.

And sometimes, the most extraordinary thing a cheesemaker can do is step back and let nature finish the sentence.

Bleu de Termignon does exactly that.

If you enjoy deep dives like this into cheeses that refuse to behave, you’ll probably like my email list. I share new posts, research notes, and the occasional strong opinion straight to your inbox. No spam. No fluff. Just cheese, properly interrogated.

Jonah Kincaid

Cheese lover. Scientist. Created a website and a Youtube channel about cheese science because he could not find answers to his questions online. 

cheesescientist.com

The post Why Bleu de Termignon Might Be France’s Most Unusual Blue Cheese appeared first on Cheese Scientist.

SEE ALSO: You absolutely need these Swiss cheeses on your bucket list →

History of Appenzeller

Appenzeller is a semi-hard raw cow’s milk cheese from the picturesque Appenzell region of Switzerland. This area, known for its lush pastures and pristine environment, provides the ideal conditions for dairy farming and cheese production.

The earliest records of Appenzeller cheese trace back to the year 1282. Actually, its production has been passed down through generations of local farmers and cheesemakers. The distinctive flavour of Appenzeller cheese comes down to its unique ageing process. We’ll take a closer look at this a bit further down.

Over the centuries, Appenzeller cheese has garnered a reputation for its exceptional quality and flavour.

Where does Appenzeller come from?

The Appenzell area, situated at the foothills of the Swiss Alps, encompasses parts of the cantons of Appenzell Innerrhoden and Appenzell Ausserrhoden. The unique geographical features and climate of this region play a crucial role in shaping the distinctive characteristics of Appenzeller.

The terroir of the Appenzell region is characterized by its lush pastures, clean air, high altitude and ample rainfall. Together those elements contribute to the growth of high-quality forage. Thanks to their exceptional diet, the local cows produce milk with a rich, creamy consistency. And this milk is the foundational ingredient of Appenzeller cheese.

Undoubtedly, the traditional farming practices in the Appenzell region are also integral to the cheese’s terroir. Small, family-run farms dominate the landscape, and the cows are often raised in a free-range environment. This sustainable approach to dairy farming not only ensures the well-being of the animals but also enhances the quality of the milk they produce.

The combination of these natural and human factors creates a unique terroir. Without a doubt, each wheel of cheese carries with it the essence of the Appenzell region.

How is Appenzeller made?

Cow breed

The Brown Swiss cow is the primary breed used in producing Appenzeller cheese. Overall, this is a robust and adaptable breed that thrives in the alpine climate. Moreover, these cows have a high milk yield and produce milk that is rich in fat and protein. Those two components are vital for cheese production.

Raw milk

The use of raw milk is a key element in crafting Appenzeller cheese. Raw milk is milk that has not been pasteurised, meaning it retains its natural enzymes and beneficial bacteria. As a result, it contributes to the complex flavour profile and unique characteristics of the cheese.

Because freshness of raw milk is crucial, the farmers collect and transport it to the cheesemaking facilities daily. This immediacy helps preserve the milk’s natural flavours and properties.

Heating and adding cultures

Once the raw milk arrives at the cheesemaking facility, the cheesemaker gently heats in large copper vats. They bring the milk to a specific temperature, which can vary slightly depending on the cheesemaker’s tradition.

Then, they add starter cultures and natural rennet to the milk. These cultures are crucial for initiating the fermentation process, while rennet helps coagulate the milk, forming curds.

Curd formation and cutting

As the milk coagulates, it transforms into a custard-like mass known as curds. The curds are then cut into small pieces using special cheese harps.

The size of the curds can influence the texture of the final product. For Appenzeller cheese, the curds are typically cut into small pieces to facilitate the release of whey.

Stirring and heating

The maker then gently stirs the curds and whey and gradually heats the mixture to a higher temperature. This process helps expel more whey from the curds and promotes the development of the desired texture. The heating is done slowly and carefully to ensure even cooking and to avoid damaging the curds.

Draining and pressing

Once the curds have reached the desired consistency, the whey is drained off. The maker then scoops the curds into round moulds, which give the cheese its characteristic shape.

Afterwards, they place those moulds under pressure to further expel any remaining whey. This also knits the curds together into a solid mass. Overall, this pressing process can last several hours.

Brining

After pressing, the cheese wheels are immersed in a salt brine bath for a period of time. This can range from several hours to a few days. The brine helps form the cheese’s rind, enhances its flavour, and acts as a natural preservative.

Importantly, the duration of the brining process can affect the saltiness and firmness of the cheese.

How is Appenzeller matured?

The maturation process of Appenzeller cheese is an intricate and carefully managed phase. Overall, this involves several key steps and can last from three months to over a year.

Special herbal wash

One of the most distinctive features of Appenzeller cheese maturation is the regular washing with a special mixture. This brine, known as “Kräutersulz”, is a closely guarded secret and varies slightly among producers.

It typically includes a blend of wine, cider and a mix of local herbs and spices. During ageing, an affineur applies this solution to the cheese wheels several times a week. This happens more frequently during the initial stages of affinage.

As a matter of fact, the herbal brine serves multiple purposes:

• Flavour Development: The herbs and spices in the brine impart a distinctive tangy and aromatic taste to the cheese.
• Rind Formation: The washing process helps develop the cheese’s characteristic orange-brown rind.
• Moisture Regulation: The brine helps maintain the right moisture levels in the cheese, preventing it from drying out.

Temperature and humidity control

Appenzeller cheese is aged in carefully controlled environments where temperature and humidity are meticulously regulated. Swiss affineurs keep their cellars cellars around 12-15°C (54-59°F), with high humidity levels. This environment helps slow down the ageing process, allowing the cheese to develop complex flavours gradually.

Ageing duration

The ageing duration of Appenzeller cheese varies, resulting in different flavour profiles and textures. We’ll explore those further a bit later.

Monitoring and turning

Throughout the maturation process, the affineur painstakingly turns and inspects each wheel of Appenzeller cheese. This ensures even ageing and helps prevent any defects. this process also involves checking for consistency in flavour, texture and rind formation.

Different types of Appenzeller

Appenzeller is released to the market at various stages of maturation. Actually, the Silver label is released at 3 months, Gold at 4-5 months, Black at 6 months and, finally, Purple at 9 months.

In addition to the different ages, there is also a White label (3 months and extra cream) and a Green label (made with organic milk).

What does Appenzeller taste like?

Due to the intense herbal wash, Appenzeller has quite a unique flavour. As the cheese ages, its flavour intensifies and gets more complex. Hence, at 3 months, a Silver label will be mild and savoury with hints of herbs and flowers. Also, its texture is supple and creamy.

On the other hand, at 9 months, the Purple label has intense flavours of herbs and spices. And its paste is firmer and dotted with scrumptious cheese crystals.

How to serve Appenzeller

In Swiss homes and restaurants, Appenzeller cheese is commonly presented on wooden boards or slate platters. Thinly cut slices showcase its characteristic golden-yellow interior speckled with small holes.

Accompaniments vary but often include:

• Crusty bread, such as rustic Swiss bread or dense rye bread, which complement the cheese’s robust flavour.
• Fruit like pear or apple slices.
• Something sweet like honey or quince paste.
• Something tangy such as pickles and cornichons.

Finally, you can pair Appenzeller cheese with several regional wines or Swiss beers.

Cooking with Appenzeller

Thanks to its unique taste and smooth texture, Appenzeller excels in a variety of culinary creations. From comforting classics to innovative dishes, here are some of the best recipes showcasing the versatility of Appenzeller cheese:

1. Appenzeller Cheese Fondue

A quintessential Swiss dish, Appenzeller cheese fondue combines the rich flavours of this cheese with white wine and garlic. This creates a creamy and indulgent dipping sauce for bread, vegetables and meats.

2. Appenzeller Cheese Tart

This savoury tart features Appenzeller cheese as the star ingredient, combined with caramelized onions, thyme and a buttery crust. This dish balances the cheese’s nutty and slightly tangy notes with the sweetness of onions. As a result, it is a great choice for brunch or a light dinner.

3. Appenzeller Cheese and Potato Gratin

Layers of thinly sliced potatoes, Appenzeller cheese, cream, and a touch of nutmeg baked to golden perfection. This comforting dish highlights the cheese’s melt-in-your-mouth quality and pairs wonderfully with roasted meats or as a standalone vegetarian main.

Conclusion

As you can see, Appenzeller cheese stands as a testament to Swiss craftsmanship and culinary tradition. Its distinctive taste and creamy texture, makes it an excellent table and cooking cheese.

Whether enjoyed in a classic fondue, a hearty gratin, or simply paired with crusty bread and wine, Appenzeller cheese delights the palate.

What’s your favourite type of Appenzeller? Let me know in the comments below.

Jonah Kincaid

Cheese lover. Scientist. Created a website and a Youtube channel about cheese science because he could not find answers to his questions online. 

cheesescientist.com

The post Appenzeller: Switzerland’s Most Flavoursome Cheese appeared first on Cheese Scientist.

SEE ALSO: The complete list of France’s most protected AOP cheeses →

What type of cheese is Ossau-Iraty?

Ossau-Iraty is a semi-hard, traditional French cheese crafted from pure sheep’s milk. Hailing from the picturesque regions of the French Pays Basque and Béarn, this cheese is celebrated for its rich, nutty flavour profile, which is delicately balanced with buttery and slightly sweet undertones.

The texture is smooth and creamy, offering a satisfying mouthfeel that complements its complex taste. Typically aged for at least 80 days, Ossau-Iraty develops a natural rind and a distinctive aroma that evokes the pastoral landscapes where it is produced.

Where does Ossau-Iraty come from?

According to the AOP, the production area for Ossau-Iraty is in France’s Pays Basque and Béarn regions. This picturesque region in the Pyrenées is near the border with Spain.

Due to its geographic location and climate, it has been a prized region for agriculture since the neolithic times. Moreover, the amount of rain and minerals in the soil produce a fresh grass in the plains that is well suited to sheep.

Actually, the cheese gets its name from the Ossau valley and Irati forest. Let’s take a closer look at those regions.

The Ossau Valley

The Ossau Valley, located in the Pyrénées-Atlantiques department in southwestern France, is a stunning natural landscape known for its picturesque beauty and rich cultural heritage.

It is part of the French Pyrenées, with the Ossau River running through it. Because it is surrounded by dramatic mountain peaks, lush forests, and verdant pastures, it has become a paradise for nature lovers and outdoor enthusiasts.

The valley is dotted with charming villages such as Laruns, Eaux-Bonnes, and Gourette, each offering a glimpse into traditional Pyrenean life with their stone houses, narrow streets, and vibrant local markets.

Without a doubt, the Ossau Valley has a vibrant cultural heritage, with traditional music, dance, and festivals playing a significant role in community life. The local cuisine, featuring products like the Ossau-Iraty cheese, reflects the valley’s pastoral traditions and agricultural bounty.

Interestingly, farmers in the Ossau Valley tend to make wheels of cheese that weight around 4 kg (8.5 lbs).

The Irati forest

On the other hand, the Irati Forest, located in the western Pyrenées along the border between France and Spain, is one of the largest and best-preserved beech and fir forests in Europe.

The forest spans over 17,000 hectares, covering parts of the Navarre region in Spain and the Pyrénées-Atlantiques department in France. It is characterized by dense woodlands, verdant meadows, and winding rivers, creating a pristine natural environment.

Irati Forest boasts rich biodiversity, home to a wide variety of flora and fauna. Its old-growth beech and fir trees provide habitat for numerous species, including deer, wild boar, and the endangered Pyrenean desman. The forest is also a haven for birdwatchers, with many raptors and forest birds inhabiting the area.

The Irati Forest is steeped in local folklore and history. It is dotted with ancient dolmens and megaliths, evidence of early human settlements. The nearby village of Ochagavía is known for its well-preserved traditional architecture and serves as a gateway to the forest.

Traditionally, cheesemakers in this region made a semi-hard cheese called Ardi. It is typically on the smaller side weighing in at around 2.2 kg (5 lbs).

In fact, the modern Ossau-Iraty cheese is a blend of those two regions’ traditions. Consequently, the wheels come in both sizes.

What milk is used to make Ossau-Iraty cheese?

Also, the AOP specifies that Ossau-Iraty can only be made from the milk of three breeds of sheep. Namely, the Red-Faced Manech, Black-Faced Manech and Basco-Béarnaise.

Those three breeds are particularly well adapted to the terroir of the region and thrive in humid cool conditions. Moreover, the farmers can only feed them grass and non genetically modified cereals. Whilst they tend to yield less milk than other sheep, they are better adapted to the climate and the practice of transhumance.

What is transhumance?

In order to preserve the grass on their property for the winter months, the majority of farmers follow the traditional practice of transhumance. From May in the Pays Basque and June in Béarne, the herders move their sheep to summer pastures at higher altitude.

Actually, they will spend all of summer and the beginning of autumn feeding on this high altitude grass. As a result of this, the grass at lower altitudes can replenish in time for late autumn. The milk collected during those months is used to make the celebrated summer cheeses called Ossau-Iraty d’Estive. 

Come the end of autumn, the herd will return to lower grounds and start to lamb. Overall, this process is very important for the sheep, the farmers and the natural eco-system of the mountain. 

How to make Ossau-Iraty

The traditional recipe for this semi-hard cheese has remained largely untouched over the millenia. Raw whole ewe’s milk is mixed with culture and rennet. Once the curd is formed, it is cut and drained.

Afterwards, the cheesemaker heats the curd to separate from whey and then transfer the solids to the cheese moulds. Finally, the moulds are pressed and drained. At this point, the cheese has attained its signature form. Subsequently, the wheels are salted and then passed on to the affineur for maturation.

How Ossau-Iraty is matured

The AOP specifies that Ossau-Iraty wheels have to be matured for a minimum of 80 days for the smaller format and 120 days for the larger one. At this point, the cheese will have a fat content of 50% and a gorgeous natural rind.

There is one point of difference between the 2 regions of production though. In Pays Basque, the wheels are matured in dry caves whereas in Béarn, they tend to be very humid. Moreover, the affineur in Pays Basque regularly brushes the cheese with a dry brush whereas, in Béarn, they wipe the wheels with a cloth imbibed in brine.

Those differences in practice lead to slightly different textures, aromas and flavours for the cheeses coming from each location. Overall, this process will last from 80 days to 12 months in some cases.

What Ossau-Iraty tastes like

This semi-hard beauty from the Pyrenees has a hay-coloured patchy rind and a pristine ivory pâte. Its aroma is surprisingly buttery and sweet with a touch of barnyard.

On the palate, you will detect notes of toasted wheat, roasted nuts, fresh grass and wildflowers. As the cheese ages, its creamy texture starts to become firm and calcium crystals start to appear. The flavour also tends to be more savoury.

How to serve Ossau-Iraty

Ossau-Iraty can be enjoyed in various ways. This is how the Basque traditionally enjoy it:

1. Plain and Simple: In the Basque Country, Ossau-Iraty is often enjoyed thinly sliced on its own to fully appreciate its unique flavour.
2. With Itxassou Cherry Jam: A traditional Basque accompaniment is black cherry jam (confiture de cerises noires). The sweetness of the jam complements the nutty and slightly tangy taste of the cheese.
3. With Bread: Serve Ossau-Iraty with rustic bread, such as a crusty baguette or country loaf. The simplicity of the bread enhances the cheese’s flavour.
4. Txakoli Wine: Pairing Ossau-Iraty with a glass of Txakoli, a slightly sparkling white wine from the Basque region, is a classic choice. The wine’s acidity balances the richness of the cheese.

Conclusion

As you can see, Ossau-Iraty is a true gem of the Basque and Béarn regions, embodying centuries of artisanal tradition and natural splendour. Its rich, nutty flavour and creamy texture make it a versatile addition to any cheese board, culinary dish or simple snack.

Whether enjoyed on its own, paired with sweet cherry jam, or savoured with a glass of Txakoli, Ossau-Iraty offers a delightful taste of Basque pastoral heritage.

What’s your favourite way to enjoy this Basque wonder? Let me know in the comments below.

Jonah Kincaid

Cheese lover. Scientist. Created a website and a Youtube channel about cheese science because he could not find answers to his questions online. 

cheesescientist.com

The post Ossau-Iraty: Pride of the French Pays Basque (Tasting & Serving) appeared first on Cheese Scientist.