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Cheese from Austria, Vorarlberg, officially recognised alpine farms and Vorsäß/Maisäß pastures at about 1,000–1,800 m
Vorarlberger Alpkäse PDOVorarlberger Alpkäse
Vorarlberger Alpkäse is a hard cheese made only in summer on Vorarlberg's alpine pastures, from raw milk of cows fed no silage. The evening milk stands overnight in wooden tubs so cream can be skimmed for alpine butter, then joins the morning milk in a copper kettle. The curd is cooked to 51–54 °C, pressed, brined for two to three days and ripened at least three months while the rind is brushed with salt water. Made in 9 steps over 3.1 months. The longest step, ripen at least three months, takes at least 3 months (Bundesministerium für Land- und Forstwirtschaft). Added lactic acid bacteria cultures does most of the fermenting.
Starter: lactic acid bacteria cultures; the evening milk matures overnight while the cream rises
Total time across the recorded steps: 3.1 months
Start
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What changes:Starting material: raw milk from cows grazing summer alpine pastures
Step 1 of 9
Milk the cows on the alp
Time
Not documented
Temperature
Not documented
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Lactic acid bacteria
Yeasts
Cheese is made only in the summer season, when the herd grazes the alpine pastures. Milk is made into cheese on site, never trucked or stored elsewhere.
Flavour
Not documented
Texture
Not documented
Colour
Not documented
Microbes at work in this step
Not documented for this step.
Method
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
What makes this one different
It is made like Vorarlberger Bergkäse but only on summer alps, from milk of cows that eat nothing but mountain grazing, and the evening milk is skimmed by hand after standing overnight in wooden tubs. Each wheel carries the name of its alp.
Milk
Raw alpine cow milk, silage-free; evening milk partly skimmed by hand
This is a raw-milk cheese. A 2025 study of Alpine raw-milk cheeses names high scalding temperatures, good starter cultures and clean milk as the hurdles that keep Staphylococcus aureus and its toxins down; this cheese is scalded at 51–54 °C and ripened at least three months.
Hazards the sources name: Staphylococcus aureus and its enterotoxins, a known risk in Alpine raw-milk cheeses.
Records show that sweet or fat cheesemaking (Süß- or Fettsennen), still the basis of this cheese, was in use in Vorarlberg during the Thirty Years' War (1618–1648). By the 18th century much of the alpine milk went into alpine cheese and the name was in use. It was registered as a PDO in 1997.