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Cheese from Slovenia, the upper part of the Vipava valley

Nanoški sir PDO

Cow milk, at least 80 % from Brown cows, is heat-treated at a low 63–69 °C, set with rennet in an open vat, cut and pressed into large moulds while it sours. The wheels are brined for three days at 12–18 °C and ripen at least 60 days in rooms in the Vipava valley, below 500 m.

Recipe

No fixed amounts recordedThe specification sets limits, not a recipe; it gives no doses. A finished wheel weighs 8–11 kg.
Cow milk, at least 80 % from Brown cows of the defined areaNo more than 72 hours from first milking to heat treatment[nanoski-sd]
Rennet solution[nanoski-sd]
Sea-salt brine[nanoski-sd]
Starterthe lactic acid microorganisms naturally present in the milk, kept alive by mixing in the rennet at a low temperature

Total time across the recorded steps: 2.2 months

Start
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63–69 °C

What changes: The milk is warmed gently to 63–69 °C, not boiled

Step 1 of 6
Collect and heat-treat the milk
Time
up to 3 days
Set
Temperature
63–69 °C
Set
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Lactic acid bacteria

The milk is collected on separate routes and stored cool after treatment.

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

At a glance

Cow milk, at least 80 % from Brown cows, is heat-treated at a low 63–69 °C, set with rennet in an open vat, cut and pressed into large moulds while it sours. The wheels are brined for three days at 12–18 °C and ripen at least 60 days in rooms in the Vipava valley, below 500 m. Made in 6 steps over 2.2 months. The longest step, ripen, takes at least 2 months (European Commission 2004). Lactic acid bacteria naturally present in the milk; the specification says the low setting temperature keeps most of them alive does most of the fermenting.

Key numbers
Main stepat least 2 monthsSet[nanoski-sd]Ripen
Temperature63–69 °CSet[nanoski-sd]Collect and heat-treat the milk

What makes this one different

Made in the Vipava valley from mostly Brown-cow milk that is only heated to 63–69 °C, so most of the milk's own lactic microorganisms survive; it is brined three days and ripened below 500 m.

Milk
Cow milk, at least 80 % Brown breed, heat-treated at 63–69 °C
Ripening
At least 60 days
Size
Wheel 32–34 cm across, 7–12 cm high, 8–11 kg; at least 60 % dry matter and 45 % fat in dry matter

Related ferments

Safety

The milk is heat-treated at 63–69 °C within 72 hours of milking, and every batch is checked by sensory and chemical analysis before the wheels are stamped.

History and sources

Every number is labelled with how it is known. How this atlas is made

The 16th-century land register of the Vipava manor shows plateau pasture rent paid partly in cheese; the Slovenian Tourist Board says that cheese was then made from sheep's milk. The Vipava dairy has made Nanoški sir from cow milk by traditional methods since 1986. Slovenia protected the name nationally in a rulebook dated 27 January 2003 (Uradni list RS 15/2003), and the EU registered it as a PDO on 30 September 2011 (Regulation 987/2011).

  1. [nanoski-sd] European Commission, Publication of an application, 'Nanoški sir', EC No SI-PDO-005-0421-29.10.2004, Official Journal of the European Union C 340/28, 15.12.2010spec
  2. [nanoski-reg] Commission Implementing Regulation (EU) No 987/2011 entering 'Nanoški sir' (PDO) in the register, Official Journal L 260, 5.10.2011spec
  3. [nanoski-pravilnik] Ministrstvo za kmetijstvo, gozdarstvo in prehrano, Pravilnik o označbi geografskega porekla Nanoški sir, Uradni list RS 15/2003, 14 February 2003 (dated 27 January 2003)gov
  4. [nanoski-sto] Slovenian Tourist Board (Slovenska turistična organizacija), Nanoški sir pridobil »označbo porekla« s strani EU, news item of 10 October 2011web