What Is Alpkäse? The Alpine Cheese You Can't Buy Anywhere Else

Switzerland has more than 450 varieties of cheese. Most of them never leave the country. Alpkäse is the most extreme case: made only in summer, above 1 400 metres, from raw milk that goes from cow to copper kettle the same morning. One alpine farm in the Justistal produces around 700 wheels per season. When the cows come down in September, production stops entirely. The cheese sitting in a cellar in October was made in July.

That is not a marketing story. It is a calendar constraint.

If you have tasted Alpkäse near Interlaken and wondered what made it different from every other Swiss cheese you had tried, this guide explains exactly that.

What Is Alpkäse, and Where Does It Come From?

Alpkäse is a raw-milk hard cheese produced on high-altitude Swiss farms between June and September. It is made exclusively above 1 400 metres, from milk of cows that graze on alpine pastures, and it is never industrially processed. One farmer, one herd, one summer season.

The name means "alpine cheese" in Swiss German. The legal definition matters: to carry the name, the cheese must be made on an alp (a seasonal mountain farm), not in a valley dairy. The milk comes from cows that eat hundreds of wild plants, dandelions, clover, wild thyme, mountain herbs that grow only at this altitude. That feed is what gives the cheese its character. The flavor comes from the pasture, not from a recipe.

Swiss regulations require a minimum aging of 4.5 months. Most wheels reach 6 to 12 months before they are sold.

How Is Alpkäse Made Differently From Other Swiss Cheeses?

Alpkäse is made in a Chäschessi, a large copper kettle, heated over an open wood fire. Not an electric resistance, not a gas burner. A wood fire. That direct flame is one of the details visitors to the farm most often describe as a surprise: the smell of the fire, the sound of the milk beginning to move, the farmer stirring by hand.

The raw milk is used immediately after milking. It is never pasteurised, never standardised, never stored. The cultures that develop in unpasteurised alpine milk are specific to that mountain, that season, that herd. They cannot be replicated in a valley dairy.

Once pressed and salted, each wheel is moved to a cellar and turned regularly over months. The rind forms naturally. The interior firms gradually. Older wheels develop a stronger, nutty, herbaceous flavor. Younger wheels (2 to 3 months) are milder, almost buttery.

Each wheel is stamped with the farm name, alp number, and production date. Swiss traceability rules mean you can identify which cow, on which mountain, in which week of summer produced the milk in your hand.

What Is the Difference Between Alpkäse and Bergkäse?

This is the question that confuses most English-speaking visitors. Both names appear on cheese boards across Switzerland.

Alpkäse is made on the alp itself, above 1 400 metres, during summer only, exclusively from raw milk. The farmer lives on the mountain with the herd for the entire season.

Bergkäse (mountain cheese) is produced in village dairies in the foothills, year-round. The milk may be pasteurised. The production is larger and more standardised. It can be excellent cheese, but it is not subject to the same altitude, seasonality, or raw-milk constraints.

The confusion is frequent in English-language reviews because both terms translate loosely to "mountain cheese." They are not the same thing. If the label does not say "Alp" or "AOP" and does not show a farm name, it is most likely a Bergkäse.

What Does "Berner Alpkäse AOP" Mean?

AOP stands for Appellation d'Origine Protégée, a European legal certification that guarantees the cheese comes from a defined territory and follows a strict production specification. The AOP label on a wheel of Berner Alpkäse means it was made in the Bernese Alps, from raw milk, on a high-altitude alp, during summer only. No valley dairy can use this label.

In practical terms: if you see "Berner Alpkäse AOP",Berner Alpkäse AOP you are looking at a cheese whose entire production chain, from pasture to cellar, is traceable and audited. It is the same system that protects Gruyère AOP and Champagne. Not a marketing badge. A legal boundary.

How Does Alpkäse Compare to Gruyère?

Both are Swiss. Both are hard cheeses. Both are made with raw milk. The differences are significant.

Gruyère AOP is produced in the Gruyères region by dairies that operate all year. The process is standardised for consistency. The result is excellent and available in 40 countries.

Alpkäse is made by one farmer, on one mountain, from one herd, for one summer. The taste changes week by week depending on what the cows ate that morning. A wheel made in mid-July is not identical to one made in late August from the same farm. No two wheels are exactly alike.

You can find Gruyère at Heathrow. The quantities are too small to export real Alpkäse, and the distribution system was never built for industrial volumes. It does not leave.

Why Can't You Find Real Alpkäse in a Supermarket?

A seasonal product like Alpkäse, produced between 200 and 700 wheels per farm per summer, is too small in volume to supply a supermarket chain. And most of it is already allocated before it reaches any open market.

Part of the reason is the Chästeilet: the traditional end-of-summer ceremony where each farming family receives cheese in proportion to how much milk their cows contributed to the cooperative. This system has worked in the Justistal since 1739. Most of the cheese goes directly from the farm to families and their local networks before it ever reaches a stall.

What you find labelled "Alpkäse" in Swiss supermarkets is often valley-produced cheese made to resemble the alpine version. Legal under Swiss labelling rules. Not the same thing.

You can't find this in a supermarket because the real version requires going to the source.

Why Does the Milk From Alpine Cows Taste Different?

Milk from cows that graze on alpine herbs above 1 400 metres is measurably different in composition from lowland dairy. Alpine pastures contain hundreds of plant species that do not grow at lower elevations, including wild thyme, mountain dandelion, and clover varieties specific to altitude.

Cows eating this diversity of plants produce milk significantly richer in omega-3 fatty acids and conjugated linoleic acid than standard lowland milk. The same cow, eating different grass, produces milk with a completely different fat and protein profile.

Cheesemakers use the word terroir for this: the same term winemakers use for grapes. A wheel of Alpkäse from the Justistal tastes different from a wheel made twenty kilometres away on a different mountain. Same breed. Different pasture.

Your Questions About Alpkäse

Is Alpkäse safe to eat if it is made from raw milk?

Yes. Swiss regulations require a minimum aging of 4.5 months for Alpkäse. During that time, natural fermentation eliminates harmful bacteria. Berner Alpkäse AOP must meet strict hygiene and traceability standards audited by Swiss cantonal authorities. Raw-milk hard cheeses aged over 60 days are recognised as safe by food safety authorities in Switzerland, the EU, and the UK.

Can I eat Alpkäse if I am lactose intolerant?

Most people with lactose intolerance can eat Alpkäse without a problem. The minimum aging of 4.5 months means the lactose is naturally broken down during fermentation. By the time the cheese reaches your plate, the lactose content is negligible. Hard aged cheeses are generally the most tolerable category for lactose-sensitive individuals.

What is the difference between Alpkäse and Bergkäse?

Alpkäse is made on the alp itself, above 1 400 metres, in summer only, exclusively from raw milk. Bergkäse is produced in village dairies in the foothills, year-round, and the milk may be pasteurised. Both are marketed as "mountain cheese" in English, which causes frequent confusion. The key distinction is altitude, seasonality, and raw-milk requirement: Alpkäse meets all three, Bergkäse does not.

Where can I buy real Alpkäse near Interlaken?

The most reliable source is directly from a working alpine farm. On the Farm and Alpine Breakfast Tour, you taste and buy cheese cut from Daniela Thierstein's cellar at Alp Sigriswiler in the Justistal: CHF 20 per kilo, cash only. Regional markets in Interlaken occasionally carry it in summer, but availability is not guaranteed.

How long does Alpkäse keep after purchase?

A properly aged wheel keeps 3 to 4 weeks refrigerated once cut. It tastes better at room temperature: remove it from the fridge 30 minutes before serving. It travels well in a carry-on in a sealed bag. Avoid checked luggage on long-haul flights.

Is Alpkäse only available in summer?

Production is seasonal: June to September only. But aged wheels are available year-round from farms and regional markets because the cheese continues to mature in cellars through autumn and winter. What you cannot find after September is fresh-made Alpkäse. A wheel available in January was made in July and has been aging for six months. That is part of what makes it taste the way it does.

Where Can You Taste Alpkäse Near Interlaken?

Daniela Thierstein's farm, Alp Sigriswiler, sits in the Justistal valley above Interlaken. Every summer, she produces around 700 wheels of Berner Alpkäse AOP before the season ends. The Chästeilet in September, observed in this valley since 1739, distributes the cheese to the cooperative families before any surplus reaches local markets.

On the Farm and Alpine Breakfast Tour, you taste this cheese at the source: cut the morning it is served, not pre-packaged. You visit the cellar, meet Daniela, and see the process directly. Groups are capped at 8 people. Tours run on Tuesdays and Thursdays. You can buy wheels to take home at CHF 20 per kilo, cash only.

Also read: Meet the Alpine Farmer Who Makes 700 Wheels a Summer

Seven hundred wheels. One summer. No intermediary.

*Written by Teona Gvasalia, your alpine guide at Swiss Local Adventures

Source: 

Berner Alpkäse AOP, and an on-site visit to Alp Sigriswiler, Justistal, 2026.